Answer:
1: 3z+5
2: 50+20x
3: (15y+18)-4
4: 12a+8
A chef made 20 desserts in
60 minutes. How many
minutes would it take him
to make 90 desserts?
HELP PLEASE!!!!
ill mark brainliest! 50 points!!
Answer:
sorry i dont understand
Step-by-step explanation:
will figure out...
milo is five inches shorter than his brother, jayce. If milo is 42 inches tall, then how tall is jayce?i need to write this into a equation and answer it.
Answer:
Jace is 47 inches tall
Step-by-step explanation:
Angela plays soccer and golf for a total of 125 minutes every day. She plays soccer 45 minutes more than she plays golf.
Part A: Write a pair of linear equations to show the relationship between the number of minutes Angela plays soccer (x) and the number of minutes she plays golf (y) every day. (5 points)
Part B: How much time does Angela spend playing golf every day? (3 points)
Part C: Is it possible for Angela to have spent 80 minutes playing soccer every day? Explain your reasoning. (2 points)
(10 points)
will give brainliest if u do all parts!!!
Part A
Answers:
x+y = 125
x = y+45
---------------
Explanation:
The first equation represents Angela playing both sports a combined 125 minutes. We simply add the variables x and y to represent adding the times for soccer (x) and golf (y).
Because she plays soccer 45 minutes more compared to golf, we also have the equation x = y+45.
==========================================================
Part B
Answer: 40 minutes
---------------
Explanation:
The second equation from part A says x = y+45
Because of this, we'll replace the 'x' in the first equation with y+45 and solve for y. I'm using the substitution rule.
So,
x+y = 125
y+45+y = 125 .... replace x with y+45
2y+45 = 125
2y = 125-45
2y = 80
y = 80/2
y = 40 minutes is the amount of time playing golf per day.
==========================================================
Part C
Answer: No it's not possible.
---------------
Explanation:
We found that y = 40 earlier. Let's used this to find x
x = y+45
x = 40+45
x = 85
Therefore, Angela spends 85 minutes playing soccer everyday. It's close to 80 minutes, but not quite there. So it's not possible that she spent 80 minutes playing soccer everyday.
Another way to show this is to say x+y = 80+40 = 120 which is five minutes short of the 125 minute goal.
what is the value of the expression 1/2 (m-2/3n) when m=3/2 and n= 1/2 ?
a. 5/12
b. 7/12
c. 11/12
d. i don’t know
Answer:
B.[tex]\frac{7}{12}[/tex]
Step-by-step explanation:
[tex]m=\frac{3}{2}\\n=\frac{1}{2\\} \\\frac{1}{2} (m-\frac{2}{3} n)=\frac{1}{2} (\frac{3}{2} -\frac{2}{3} .\frac{1}{2} )\\=\frac{7}{12}[/tex]
So B is the correct answer.
Expression is a combination of operators, variables and numbers.. The value of the expression 1/2 (m-2/3n) when m=3/2 and n= 1/2 is 7/12.
What is Expression?Expression is a combination of operators, variables and numbers.
The given expression is one by two times of m minus two by three times n.
1/2 (m-2/3n)
where m and n are two variables with values m equal to three by two 3/2 and n equal to one by two.
1/2 (3/2-2/3(1/2))
Firstly we solve the value in parenthesis.
1/2 (3/2-1/3)
LCM of two, three is six
1/2 ((9-2)/6)
Subtract nine and two we get seven
1/2 (7/6)
Now one by two times of seven by six
7/12
So value of the expression 1/2 (m-2/3n) when m=3/2 and n= 1/2 is 7/12.
To learn more on expressions click:
https://brainly.com/question/14083225
#SPJ2
Find the slope of each line.
А
B
с
A)
A
B)
C)
Answer:
A=b B=C C=A
Step-by-step explanation:
hi Help pls will mark as brainlist!!!!!!!!!
can someone tell me if this is correct.
Dividing Decimals by Decimals Word Problems
The Sanchez family drove 48.9 miles to the river. It took them 1.2 hours to get there. How fast did they drive in miles per hour?
Please answer quickly because this is due tomorrow
Answer:
speed = distance÷time 48.7÷1.2 = 40.58
The number of seconds varies directly as the number of minutes. When 240 seconds have passed. 4 minutes have passed. If 420 seconds have passed , how many minutes have passed? ( help pls >.< )
Answer:
7 minutes.
Step-by-step explanation:
You can simply apply the well known rule if time: 60mins makes 1 hour,
or use proportion;
where x is the value you seek,
4=240
x=420
The relationship between 4 and 249 is 60 so,
420 divided by 60 equals 7 minutes.
Hope this is helpful,
if so please mark brainliest.
If
6/
z + 4
=P, and p
=
12, what is the value of z?
Answer:
P
= 6
/z + 4
Z = 3/4
Exact Form : 3/4
Decimal Form : 0.75
Answer:
.75
Step-by-step explanation:
6/.75 = 8 + 4 = 12
Select all statements that are true about the triangles.
Answer:
D
Step-by-step explanation:
Side andle side
What is 2/7 ÷ 4/5 ? Plz help
Answer:
5/14
Step-by-step explanation:
Please I actually need this done
Answer:
AC = 19
Step-by-step explanation:
A__C__S
AS = AC + CS
6x -4 = (4x-1) + 7
6x - 4 = 4x + 6
6x - 4x = 6+ 4
2x = 10
x = 10/2
x = 5
AC = 4x -1 = 4(5) - 1 = 20 - 1 = 19
I hope I helped you^_^
Answer:
19
Step-by-step explanation:
AS = AC + CS
6x - 4 = 4x -1 +7
6x - 4 = 4x + 6
Add 4 to both sides,
6x = 4x + 6 + 4
6x = 4x + 10
Subtract 4x from both sides
6x- 4x = 10
2x = 10
Divide both sides by 2
x = 10/2
x = 5
AC= 4x - 1
= 4*5 - 1
= 20 - 1
= 19
I WILL GIVE BRAINLIEST AND 30 POINTS
What is the slope of the line on the graph?
Enter your answer in the box.
Answer:
6
Step-by-step explanation:
(y1-y2)/(x1-x2) = (-1-5)/(0-1) = -6/-1 = 6
hope it helps!
if x°,2x°and 30°are the angles of triangle ,find x°and 2x°
Answer:
x° = 50° 2x°= 100°
Step-by-step explanation:
sum of all angle of triangle = 180° therefore
x° + 2x° + 30° =180°
3x° = 180° - 30°
3x = 150°
x = 50°
2x = 100
What is the measure of NRS?
Answer: c I believe
Step-by-step explanation:
Let f(x) = 3x2 + x − 3 and g(x) = x2 − 5x + 1. Find f(x) − g(x).
2x2 − 4x − 2
2x2 − 4x − 4
2x2 + 6x − 2
2x2 + 6x − 4
Answer:
D) 2x^2 + 6x - 4
Step-by-step explanation:
I took the quiz and got a 100%
After being discounted by 20%, a bicycle sells for $140. What was the bicycle's original cost?
Answer:
$700
Step-by-step explanation:
20%=140
divide both sides by 20
1%=7
times both sides by 100
100%= 700
$700
hope this helps
Find the slope of each line.
Answer:
The slope is m=1, y=1x-2
Step-by-step explanation:
Therefore, the slope is 1/1 so 1.
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Answer:
hsoabajakahaknanaKambaKla
Please answer correctly !!!!!!!!!!!!!! Will mark brainliest answer !!!!!!!!!!!!!!!
Answer:
where is your Question??????
What can you say about the LCM of two numbers, if one (or both) of
the numbers is prime?
Answer:
If one or both numbers are prime, the LCM(Lowest Common Multiple) is the product of the numbers. e.g the LCM of 2 and 5 is 10; 2×5
Find the unknown sizes of angles in the following figures (with step-by-step explanation please):
Answer:
O= 87 degrees
Step-by-step explanation:
Because they are opposites
Answer:
x angle is 29
then 2x angle is 58 and y angle is complementary so then y also is 58
Which number produces a rational number when multiplied by 1/2
Step-by-step explanation:
all odd numbers
that should be the answer
find the missing values in the ratio table then write the equivalent ratios
PLS HURRY!!
Answer:
1. 10
2. 4, and the bottom row is 21
3. divide the bottom by 4. you get 8
4. top row is 15 and bottom row is missing 6
HELP PLEASE ASAP!!! PLEASE AND THANKS
Answer:
x >= 12
Step-by-step explanation:
2x + 7 <= 3x - 5
7 + 5 <= 3x - 2x
12 <= X
if a mine inspector starts at level -13 and goes up 3 levels and goes up 3 more levels at what level is she at ??
Answer:
The mine inspector is at level -7
Answer: -13 + 3 + 3 = -7
PLEASEEEEE HEELP MEEEE DO THIS WORK THANK U!
Answer:
There are no solutions.
Step-by-step explanation:
Put it in an equation
x + 5 = x − 13
Let's solve your equation step-by-step.
x + 5 = x − 13
Step 1: Subtract x from both sides.
x + 5 − x = x − 13 − x
5 = − 13
Step 2: Subtract 5 from both sides.
5 − 5 = − 13 − 5
0 = − 18
Answer:
There are no solutions.
Jack was out at a restaurant for dinner when the bill came. His dinner came to $14. He wanted to leave a 31% tip. How much was his meal plus the tip, before tax, in dollars and cents?
Help please I wasn’t here for this!!!
Answer:
$18.34
Step-by-step explanation: