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3 years ago

Here's the png with the question. I think I have the right answer but I need help.

Mathematics

2 answers:

scoray [572]3 years ago

8 0

Answer:

the answer u have is right cause i have telepathy

Step-by-step explanation:

sesenic [268]3 years ago

6 0

Answer:

D because you add the top and bottom then multiply height. Then divide by 2

Step-by-step explanation:

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A chef plans to mix 100% vinegar with Italian dressing. The Italian dressing contains 12%

Hitman42 [59]

Answer:

Amount of vinegar. 100% : 20 milliliters

Amount of Italian dressing: 140 milliliters

Step-by-step explanation:

Let's call A the amount of vinegar. 100%

Let's call B the amount of Italian dressing . 12% vinegar

The resulting mixture should have 23% vinegar, and 160 milliliters.

Then we know that the total amount of mixture will be:

$A + B = 160$

Then the total amount of pure antifreeze in the mixture will be:

$A + 0.12B = 0.23 * 160$

$A + 0.12B = 36.8$

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -1 and add it to the second equation:

$-A -B = -160$

$A + 0.12B = 36.8$

--------------------------------------

$-0.88B = -123.2$

$B = \frac{-123.2}{-0.88}$

$B = 140\ milliliters$

We substitute the value of B into one of the two equations and solve for A.

$A + 140 = 160$

$A = 20\ milliliters$

7 0

4 years ago

The perimeter of a rectangular movie screen at a local cinema is 148 feet. If the length of the screen is 30 feet longer than th

Rudiy27

The perimeter of a rectangle = 2(l + w)

l = length

w = width

In this problem,

w = x

l = x + 30

the perimeter = 148

Let's plug our values into the perimeter formula above.

148ft = 2(x + x + 30ft)

Combine like terms.

148ft = 2(2x + 30ft)

Distribute the 2

148ft = 4x + 60

Subtract 60 from both sides

88ft = 4x

Divide both sides by 4

22ft = x

The width = x = 22ft

The length = x + 30 = 22 + 30 = 52ft

8 0

3 years ago

This Data set represents the number

Deffense [45]

Answer:

The answer would be A. 1.25

4 0

3 years ago

Find the missing value to the nearest hundredth of a degree. Help!!

Natasha_Volkova [10]

We have that
cos(alfa)=0.2546
arc cos (0.2546)=75.2501---------- > 75.25°
the answer is 75.25°

8 0

4 years ago

Read 2 more answers

If you multiply the length times the width you get the of the prism base.

creativ13 [48]

Answer:

this is false. that would be the formula to find the volume

Step-by-step explanation:

6 0

3 years ago