Mathematics High School

Rob has 40 coins, all dimes and quarters, worth $7.60. How many dimes
and how many quarters does he have?
... please solve this using if systems of equations

Answers

Answer 1

seen you with ur ex

Related Questions

Please I need help I’m sorry for bothering

Answers

Answer:

A

Step-by-step explanation:

Answer:

A

Explanation:

Since you are adding the numbers in the parenthesis, it doesn’t matter which order they go in, the answer won’t change.

pls help i will give brainliest

Answers

It is B because yiu solve

At a sale, coats were sold for $17 each. If the coats originally cost $20 each, what percentage of its original price was a coat sold for?

Answers

15% off
$20 is 100%
$10 is 50%
$1 is 5%

Use that to work them out and voila

Fully simplify 16x^4(2x^2y)

Answers

STEP 1:
Equation at the end of step 1

(16 • (x^4)) • (2x^2 • y)

STEP 2:

Equation at the end of step 2:

2^4x^4 • 2x^2y

STEP 3:

Multiplying exponential expressions :

3.1 x^4multiplied by x^2 = x(4 + 2) = x^6

Multiplying exponents:

3.2 2^4multiplied by 2^1 = 2^(4 + 1) = 2^5

Final result :
2^5x^6y

Help me please thanks so much

Answers

sub in the numbers
6/3
=2/1
which is basically 2, the first option

Answer:

2

Step-by-step explanation:

x/y equals to 6/3. Simplify it- 6(numerator) can go into 3(denominator) twice, so therefore it is 2.

Or you can divided 6(numerator) by 3(denominator), and get 2.

Hope this helped, guys!

I NEED THIS ASAP I will give 40 POINTS AND WILL MARK BRAINLIEST!!!

Answers

Answer:

1st attachment x=25,

2nd attachment x=107, x=-26

Step-by-step explanation:

Step-by-step explanation:

1. It's x = 25

Hope It Helps U


Plz help ASAP look at the pictures it’s the question and stuff plz and thank you

Answers

Answer:

oh this is not easy hold on

Step-by-step explanation:

Please help!! I'll give brainliest and the rest!!

Answers

Answer:

C. 4c < 60

Step-by-step explanation:

Isabell + 3 sisters

good luck, i hope it helps :)

The total cost of a sweater and a pair of pants was $89.47. If the price of the sweater was $8.53 less than the pair of pants, what was the price of the sweater? Express your answer as a simplified fraction or a decimal rounded to two places.

Answers

Answer:

Let S = price of sweater

Let P = price of pants

S + P = 89.47 because that was the total spent

S = P - 8.53   because the sweater is 8.53 less than pants

Substitute P-8.53 in place of S in the

1st equation and solve for P

P - 8.53 + P = 89.47

2P - 8.53 = 89.47     add 8.53 to both sides

2P = 89.47 + 8.53

2P = 98.00  divide both sides by 2

P = 98.00/2

P = $49.00

S = P - 8.53

S = 49.00-8.53

S = $40.47

A sweater costs $40.47 and the pants cost $49.00

The volume of this cylinder is 1,077.02 cubic inches. What is the radius? Use ​ ≈ 3.14 and round your answer to the nearest hundredth.

Answers

Answer:

This Answer :)

Step-by-step explanation:

sorry if wrong :)

Hmm sebelumnya mangap yah geng

stok pulpen w kebetulan habis belum beli ke warung jadi terpakasa w pake pensil deh

mangap...yah

Mangap juga tulisan kurang rapi dan cuantek

Thx :)

Enter an algebraic inequality for the sentence. Use x as your variable.


The quotient of three times a number and 4 is no more than 13.

Answers

Answer:

3x + 4 ≤ 13

Step-by-step explanation:

Please help me!!!!!!!!!

Answers

Answer:

396

Step-by-step explanation:

You multiply 3 times 3 times 4 times 11 to find your answer 396.

You could split them in two different shapes either a rectangle and square or two rectangles and add up all sides of one then do the same to the other and add them both

Plz help I will give brainliest

Answers

Answer:

Should be the second and third ones. If you multiply the values together, 3/4s will equal 3/16 and 3/32 with the other value.

Can someone please help with this? I am so confused
substitute a
-13 ; b = -9 ; C = 2 and evaluate each expression.
17. 2c + b - a + 14
18. -(-2a) + 16 - b2
19. -3b + C - a + 4

Answers

Answer:

Basically adding in and subing the letters with the numbers given too you below

Step-by-step explanation:

2(2)+(-9-13)+14= -4

-(-2(-13)+16-(-9)2= -60

-3(-9)+(2-13)+4= 48

HELP ME PLEASE NO LINKS!!!!! IM TIMED :(((((

Answers

Answer: -first one is equal to 96 cm^2

-second one is equal to 25.5 cm^2

-third one is equal to 82.8 cm^2

-last one is 34.04 cm^2

I used the calculator on GO0GLE to find it out....

I really need help. I've checked everywhere and it says cannot be factored. I will give brainliest to whoever can help me and give the correct answer. PLEASE HURRY!

Answers

Answer:

B) -5, 5, -7, 7           

Step-by-step explanation:

3x² - bx + 2

factor:

(3x - 2 )(x - 1) = 3x² - (5)x + 2      so 5 does work

(3x - 1 )(x - 2) = 3x² - (7)x + 2      so 7 does work

(3x + 2 )(x + 1) = 3x² + 5x +2    =    3x² - (-5)x + 2      so -5 does work

(3x + 1 )(x + 2) = 3x² + 7x + 2   =    3x² - (-7)x + 2      so -7 does work


You estimate that there are 32 candies in a bag.
and find there are actually 29 candies. Find the percent error. Round to the
nearest tenth of a percent if necessary.
a. 0.09%
C. 9.4%
b. 0.10%
d. 10.3%

Answers

Answer:

D. 10.3%

Step-by-step explanation:

Find the percent error using the formula:

percent error = | (observed - expected) / expected | x 100

32 is the observed value, and 29 is the expected value

Plug in these values to solve for the percent error:

percent error = | (observed - expected) / expected | x 100

percent error = | (32 - 29) / 29 | x 100

percent error = 10.3%

So, the correct answer is D. 10.3%

Is z = 5 a solution to the inequality below?
z > 12
yes
no

Answers

Answer:no

Step-by-step explanation:z should be more than 12 like 13, 16.67,...

Answer:

No

Step-by-step explanation:

Z=5

5 >12 5 is not greater than 12.

3/10 x 120 pls help me do this question

Answers

Answer: 36

Step-by-step explanation: First you will convert 3/10 into 0.3. Then you will multiply it by 120 by setting it up like this:

120

0.3

For now ignore the decimal and add it later when you are done. I hope this helps!

what is the rate of change and initial value for this graph?

Answers

Answer:

4/7

Step-by-step explanation:

the rate of change (aka slope) is the change in y over change in x and as y goes up 4 x goes up 7 so the rate of change is 4/7

have a great day :D

A gym charges an annual membership fee of $120 plus $45 per month to use the pool facilities. What is the cost of one year of membership at the gym that included use of the pool?

Answers

I think it’s $660 because the $120(membership fee) plus $45x 12 (for each month or the year) makes for a total of $660.

Please please help help please please help me please ASAP and NO LINKS

Answers

Answer:

Q1: (-4,0)

Q2: 3

Step-by-step explanation:


Find the solution of the system of equations.
4x – 5y = 46
-4x – 4y = 8​

Answers

Answer:

(4,-6) or x=4 and y= -6

Step-by-step explanation:

Answer:

x = 4 ; y= -6

Step-by-step explanation:

-9y = 54

y = -6

4x +30 = 46

4x = 16

x = 4

Which expression is equivalent to 8 x 2 − 2 x − 3 ?

Answers

you have to follow PEMDAS. you multiply first and then subtract. I hope this helps and let me know if I got it wrong. Sorry it’s upside down. Click on the picture and then flip it using the icon at the top

Awnswer this Pls! 70 points

Answers

Answer:

the answer is  true

Step-by-step explanation:

Answer:

false i hope this helps and please mark as brainly

What % of $30 is $21?

Answers

Answer:

70

Step-by-step explanation:

Answer:

x/100 x 30 = 21 (solve for x) x =70

I wish I could explain more but if your just lazy to do this i wont explain but if you honestly dont know I will explain, so solve for x you must multiply by a 100 on both sides and on the right side you multiply it to the fraction so x/100 x 100 = x (variable by itself means 1) then 21 x 100 = 21,000 therefore you are left with 30x since you are multiplying x and 30 together then you will divide by 30 on both sides to get x = 70

WILL MARK BRAINLIEST

Answers

Answer:the repeating digit is 6

Step-by-step explanation:

can i have brainliest

Find the equation of the line.Use exact numbers.

y= ___ x+ ___

Answers

answer: y=3x+3

explanation:

Can you please help me!!

Answers

Answer:

the slope is 2x

Step-by-step explanation:

It goes up 12 units and right 6 units, so divide 12 by 6

next in the table put 6 and 12, then 12 and 24

finally, the equation is y = 2x

can you answer my question please?

Answers

Answer:

hi

Step-by-step explanation:

Other Questions
how do i put that on a line?please help me. 6 is 4% of whatnumber? how can louisiana citizens influence government and public policy? What is the correct name for the cyclic alkane shown on the right?1,3-dimethyl, 3-ethylcyclohexane1-ethyl, 1,4-dimethylcyclohexane1-ethyl-1,3-dimethylcyclohexane1-ethyl-1,3-dimethylcyclopentane1,3 dimethyl, 3- ethylcyclopentaneA skeletal model of a six-sided polygon has a single line to a C H 3, and a bent line to a C H 3 from one corner. The second corner away from that counterclockwise also has a single line to a C H 3. (What are the Constitutional requirements for appointing federal government officials?Please answer HALPPPPP PLZZZ I'll give Brainliest for the first answer CORRECT Fossils show that ancient horses had shorter legs than modern horses. What is most likely responsible for the evolution of long legs in the horse species?Immersive Reader(5 Points)The horses legs stretched because humans started to ride on horses.The horses began to eat different foods, which made their leg bones grow longer.The horses legs stretched because the horses started to run faster than ancient horses.The horses born with longer legs were more likely to survive and reproduce. Which is the quotient of 4 divided by 1/4? 2, 8, 16, 24 Jen is renting a mountain bike . The bike rental shop charges a $55 deposit for the bike and helmet plus an additional $15 per day Remplissez les espaces blancs avec la forme correcte des verbes entre parentheses au PASS COMPOS, lIMPARFAIT ou au PLUSQUEPARFAIT selon le contexte:UN SENS DU DEVOIRCe / C (1.) __ (tre ) un dimanche aprs-midi dt, au bord dun lac. Le soleil (2.) __ (briller), il ny (3.) __ (avoir) aucun nuage dans le ciel. Il y (4.) __ (avoir) beaucoup de monde autour du lac. quelques gens (5.) __ (faire) des pique-niques, des enfants (6.) __ (jouer) au ballon, dici-l une jeune fille (7.) __ (lire) lombre des arbres et des hommes (8.) __ (dormir) avec un mouchoir sur le visage. Un petit garon (9.) __ (promener) son chien. Il (10.) __ (samuser) jeter un morceau de bois dans leau. Le chien (11.) __ (ramener) le bout de bois chaque fois et le garon le (12.) __ (relancer) dans leau. un certain moment, le chien (13.) __ (ne plus revenir). Il (14.) __ (tre) au milieu du lac, il (15.) __ (sembler) en difficult. Le petit garon l (16.) __ (appeler) avec toutes ses forces, mais le chien (17.) __ (ne pas bouger). On (18.) __ (pouvoir) voir que le chien (19.) __ (avoir) du mal nager, quil (20.) __ (tre) puis et quil (21.) __ (se noyer), mais on (22.) __ (ne pas comprendre) pourquoi. Tout le monde (23.) __ (se mettre) regarder la scne. Une jeune fille (24.) __ (sortir) son tlphone portable de son sac pour appeler les secouristes et elle (25.) __ (sapprocher) du garcon pour essayer de le consoler. Les enfants (26.) __ (arrter) de jouer et ils (27.) __ (se diriger) vers le bord du lac pour voir de plus prs. Soudain, un cycliste (28.) __ (arriver). Il (29.) __ (voir) ce qui (30.) __ (se passer) et tout de suite il (31.) __ (comprendre) la situation. Il (32.) __ (poser) son vlo par terre, il (33.) __ (enlever) sa montre, ses chaussures, sa chemise et ses chaussettes et il (34.) __ (plonger) dans leau du lac. Le cycliste (35.) __ (tre) en bonne forme physique, il (36.) __ (avoir) un corps trs muscl et il (37.) __ (savoir) nager trs bien et en trs peu de temps il (38.) __ (sapprocher) du chien. Il (39.) __ (observer) que le chien (40.) __ (tre) pris par la branche dun arbre qui (41.) __ (flotter) sur leau. Avec ses gros muscles, le cycliste (42.) __ (casser) la branche. Le chien et le cycliste (43.) __ (revenir) sur le bord du lac. Le chien (44.) __ (aller) apporter la branche casse son matre, le petit garon. ce moment, on (45.) __ (comprendre) alors que le chien (46.) __ (se tromper) et quil (47.) __ (confondre) le bton du garon avec une branche dans leau qui (48.) __ (appartenir) un gros arbre. Il (49.) __ (se faire) tuer presque, par un sens du devoir! Mais, tout tait bien qui (50.) __ (finir) bien! PLZZ HELP I WILL MARK YOU BRAINLIEST (( plz only answer if you have the correct answer )) What is unique about a poem as a form of literature? How is it different from other forms?A. It relies on readers' use of inferences.B. It focuses on feelings that humans share.C. It includes specific nouns and verbs.D. It is condensed into a small space. -2x + 7 = x-32 i need all the steps A tungsten wire is 1.5m long and has a diameter of A current of flows through the wire. The resistivity of the wire is 5.6 * 10 ^ - 8 What is the potential difference across the ends of the wire? 5. Our values, opportunities, and desires all tend to change over time, which leads to changes in our _______________. A. Responsibilities B. Goals C. Accountability D. Obligations can you please help me Help Me With this question!!!!!!!!!! please Please help and answer! kale is a leafy green vegetable that is low in calories if there are 12 boys and 48 girls in a room, fill out all of the possible ratios of boys to girls that could be made. Use the area of the rectangle to find the area of the triangle,6.ft7 ftA. The area of the triangle is 42 square feet, because the area of therectangle is 42 square feetB. The area of the triangle is 21 square feet, because the area of therectangle is 21 square feet.C. The area of the triangle is 21 square feet, because the area of therectangle is 42 square feet.D. The area of the triangle is 26 square feet, because the area of therectangle is 24 square feet