Mary bought 4 small cookies for 40 cents each and 2 large cookies for 90 cents each how much did she spend all together

Answers

Answer 1

Answer:

$3.40

Step-by-step explanation:

4x.40 is 1.60

2x.90 is 1.80

Then you take 1.80+1.60 to get $3.40 Hope this helps!


Related Questions

The half-life of radium is 1690 years. If 90 grams are present now, how much will be present in 400 years?

Answers

Answer:

76.38 g

Step-by-step explanation:

Below expresion can be used in calculating the remaining amount of radium

A(t)=A(0) (1/2)^(t/h)

Let A(t)=the remaining amount of radium

Let A(0)= amount of radium at the beginning= 90 grams

t= amount of time in years= 400 years

h=the half-life time= 1690 years

A(t)=A(0) (1/2)^(t/h)

If we substitute the values into the expresion we have

A(t) = 90 × (1/2)^(400/1690)

A(t)= 76.38 g

Taylor noticed that for the rectangle below she could multiply 2 times 3 to get its area of 6 square inches. How else could she find the area?

Answers

Answer:

Add 2+2+3+3

Step-by-step explanation:

Correct me if i'm wrong but that's my answer. I studied this 3 years ago.

Answer:

3 x 2 or 3 + 3

Given: Taylor noticed the rectangle she could multiply 2 times 3 to get its area of 6 square inches.

so, if we did 3 times 2 its 6 but if we did 3 + 3 it also 6 so therefore she could do 3 x 2 or 3 + 3 to find the area.

Step-by-step explanation:

Solve for x and y simultaneously

Pls help me​

Answers

Step-by-step explanation:

Are the roots equal or unequal

Can someone please help me! ASAP

Answers

Answer:

∠ V = 130°

Step-by-step explanation:

In a parallelogram opposite angles are congruent and consecutive angles are supplementary.

∠ S and ∠ V are not opposite angles, they are consecutive, then

∠ S + ∠ V = 180°

50° + ∠ V = 180° ( subtract 50° from both sides )

∠ V = 130°

7/15=x/45 find the missing value

Answers

Answer:

the answer to your question is 21

solve the simultaneous equations 3 x - 5 y = 5 ,x + 10y= 4​

Answers

-46 and 5
Hope its right

Write the equation in standard form of the line that
passes through the point (4, -2) and has a slope of -1/2.

Answers

Answer:

x+2y=0

Step-by-step explanation:

y-y1=m(x-x1)

y-(-2)=-1/2(x-4)

y+2=-1/2x+4/2

y+2=-1/2x+2

y-(-1/2x)=2-2

y+1/2x=0

1/2x+y=0

2(1/2x+y)=2(0)

x+2y=0

what is the answer to
x+5=10

Answers

X equals 5 because 10-5 =5 have a good day !

Please help me solve these exponents

Answers

I don't know the answers but you can figure these out by using desmos online, it's a scientific calculator website that's easy to use

PLEASE! PLEASE!!!!! ANSWER ASAP!!! YOU WILL GET BRAINLIEST!

Lab group A got a residual of 14.1005 grams of silver at the end of an experiment. Lab group B got a residual of 11.023 grams of silver at the end of a similar experiment. Using significant digits, find how much more silver lab group A got compared to lab group B.


A. 3.077 g

B. 3.0775 g

C. 3.078 g

D. 3.75 g

Answers

Answer:

C. 3.078

Step-by-step explanation:

14.1005 - 11.023 = 3.0775

Then you round the ten thousands place turning 75 into 8 equaling 3.078

Subtraction is a mathematical operation. The amount of silver lab group A got compared to lab group B is 3.0775 gm more.

What is subtraction?

Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.

The amount of silver that group A got is 14.1005gm, while the amount of silver that group B got is 11.023 grams. Therefore, the amount of silver lab group A got compared to lab group B is,

14.1005 gm - 11.023 gm = 3.0775 gm

Hence, the amount of silver lab group A got compared to lab group B is 3.0775 gm more.

Learn more about Subtraction:

https://brainly.com/question/1927340

#SPJ2

Help me plz!!!! For number 17

Answers

Answer:

x=40

Step-by-step explanation:

x + 320 = 360

   -320     -320

x            =  40

Answer:

x=40

Step-by-step explanation:

So, since the figure has 4 sides, we know that the sum of the interior angles is 360. To check: (n-2)*180=(4-2)*180=28180=360.

That means x equals 360 minus the sum of the other three angles.

100+120+100=320

360-320=40

x=40 degrees

3 people invest in a business in the ratio 2:3:5.if the profit from the business is $450 000.how much does each person get?​

Answers

Each person gets 45,000

Answer:

$90,000;$135,000;$225,000

Step-by-step explanation:

In this question we have to find the share of each person

First we have to find the sum of all the ratios,

[tex]2 + 3 + 5 \\ = 10[/tex]

Then we have to represent their share as a fraction and then multiply it by the total value,

The share of first person:-

[tex] \frac{2}{10} \times 450000 \\ = 2 \times 45000 \\ = 90000[/tex]

So the first person share is $90,000

The share of second person:-

[tex] \frac{3}{10} \times 450000 \\ = 3 \times 45000 \\ = 135000[/tex]

So the second person share is $135,000

The share of third person:-

[tex] = 450000 - (135000 + 90000) \\ = 450000 - 225000 \\ = 225000[/tex]

So the third person share is $225,000

(This is your answer hope it helps :))

Write the polynomial 4x+5x^3+17x^5-7 in descending order.

Answers

Answer:

5x+4x^17+3x^5-7

Step-by-step explanation:

WHAT numbers do 12 and 10 go in evenly

Answers

Answer:

Step-by-step explanation:

All the factors of 12

So 1, 2, 3, 4, 6 and 12 are factors of 12.

Answer:

answer is 2×2×3×5= 4×15=60 im srry if you did not mean this but anyways have nice day

Step-by-step explanation:

12,10| 2

6,5| 2

3,5| 3

1,5| 5

1,1

100 POINTS WILL MARK BRAINLIEST
-109.3+x=184.9

Answers

Answer:

x  = 294.2

Step-by-step explanation:

(-109.3+x)+109.3=184.9 + 109.3

184.9+109.3=294.2

Answer:

x=294.2

Step-by-step explanation:

to check your answer...

-109.3+294.2=184.9

hope this helps have a good rest of your night/day :) ❤

can I please get the brainliest I only have 1 pls

If x equals 8 what is the volume.​

Answers

Answer:

I think it might be 9420 Im not sure though

Step-by-step explanation:

Hey There! Allow me to explain how to solve this (I will not say the answer bc I also don't know but here is how you can find it). As you see the shape is a Cyclinder & the formula for it is V=Bh or V=πr2h. You might wanna start with solving the problems (8x - 4) & (11x + 12) Use the order of PEMDAS (Parrenthesis, Exponets, Multiplication, Division, Addition, Subtraction.) to solve is so if solving (8x - 4) And if x = 8 than first begin with mutiliplying 8 x 8 (Because it says 8x and x = 8 which means we are multiplying) than subtract that with 4 (Which will be 64 - 4). Than for (11x + 12) you will wanna do 11 x 8 which is 88 added by 12 which that will be 100. Than use the formula (V=Bh or V=πr2h) And you should have you're answer! I hoped this help and sorry for not finding the answer but atleast I explained to you on how to solve it! <3

Three less than a number is 14 more than 2 times that number. What is the number?

Answers

Answer:

-20 = - 20

Step-by-step explanation:

Suppose the number is x

three less than a number means x - 3 which is equal to 14 more than twice a number means 2x +14.

So we can write

x - 3 = 2x +14 - - - - - A

subtract x from both sides

x - x - 3 = 2x - x +14

-3 = x +14

Subtract 14 from both sides

-3 - 14 = x +14 - 14

-17 = x

Or x = - 17

Now can verify our answer by putting the value of x in Eq A

-17 - 3 = 2 x (-17) +14

-20 = - 34 +14

-20 = - 20

I hope this helps.       :)

+) Tickets to the spring festival are being sold online. The ticket price is $8 per person. The
expression 8t + 2 represents the total cost for t tickets, including a $2 service fee.
) What does the term 8t represent?
*) the price of the tickets
) the service fee
) the number of tickets
*) the total cost, including the service fee

Answers

Answer: What does the term 8t represent?

*) the price of the tickets

Step-by-step explanation:

5 Gretchen borrowed $50 from her parents for 3 months. They charged her 14% interest. How much does she need to pay her parents to pay off the loan?​

Answers

Step-by-step explanation:

simple interest = principal×rate×time

S.I = $50×(14÷100)×3

S.I=$50×0.14×3

S.I=$21

Amount= principal + simple interest

Amount = $50+$21

Amount = $71

Someone plz help me giving brainliest

Answers

Answer:

no this is wrong its souposed to be moved twice so it will look like this:

706.56

Step-by-step explanation:

This week at the farmer's market the price of oranges per pound has decreased by 20% compared to last week. If the price of oranges this week is $3.89, which equation would represent the price of oranges per pound last week, p?

Answers

Answer:

$4.8625

Step-by-step explanation:

$3.89 + 20%

$3.89 = 80%

$3.89 × ¼ = $0.9725

$0.9725 × 5 = $4.8625

hi please help i’ll give brainliest please

Answers

Answer:

it should be all of them besides the last one because 3 is greater than 2

and 2 because it is equal

Step-by-step explanation:

Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation? Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation?

Answers

Answer: [tex]6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}[/tex]

Step-by-step explanation:

Given

Quadratic equation is

[tex]x^2-12x+15=0[/tex]

Solving by completing the square method

[tex]\Rightarrow x^2-2\cdot 6\cdot x+15=0\\\text{add and subtract 36}\\\Rightarrow x^2-2\cdot 6\cdot x+15+36-36=0\\\Rightarrow x^2-2\cdot 6\cdot x+36+(-36+15)=0\\\text{using}\ (a-b)^2=a^2+b^2-2ab\\\Rightarrow (x-6)^2-21=0\\\Rightarrow (x-6)^2=21\\\Rightarrow x-6=\pm \sqrt{21}\\\Rightarrow x=6\pm \sqrt{21}[/tex]

The solution set of the equation is [tex]6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}[/tex]

Answer:

D on edge

Step-by-step explanation:

I NEED HELP!!! ASAP!
The image of point (2,1) under a rotation -540 degrees about the origin is:

a. (-1,2)
b. (-2,-1)
c. (1,2)
d. (2,1)
e. none of the above

Answers

I think the correct answer is B.

can someone please help me!!

Answers

Answer:

the difference is the rate of change and the payment plan

Step-by-step explanation:

A square has a side length of 6 inches. It is enlarged and the new side length is 18 inches. What is the scale factor

Answers

The scale factor is 2

Add

-10 + 5=

Add.

-19 + -6

Answers

Answer:

-30

hope i helped

Step-by-step explanation:

Can someone please help me ASAP

Answers

Answer:

Step-by-step explanation:

AB = 5

AC = 6

BC = √(5² + 6²) = √61 ≈ 7.8 units

find the value of given expression

[tex] \sqrt{310 \times 310} [/tex]

Answers

Answer:

√{310×310}=√310²=±310 is your answer

25% of
___= 4 what is the correct answer?

Answers

Answer:

Answer is 16%

Step-by-step explanation:

I hope it's helpful!

Answer:

16

Step-by-step explanation:

Do 4/ 1 over 4.  This simplifies to 4*4 so your answer is 16.  To check 4/16 = 0.25

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