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3 years ago

Please help asap it’s a test

Mathematics

1 answer:

12345 [234]3 years ago

3 0

Answer:

3x = 1.5x + 8.4

8.4/1.5=5.6

5.6 x 3 = 16.8

5.6 x 1.5 + 8.4 = 16.8

Step 1. Cancel out the -0.4 so you add 0.4 to both sides

Step 2. Divide 8.4 by 1.5 = 5.6

Step 3. Replace X with 5.6 and check if the equation is correct

5.6 is the answer

Step-by-step explanation:

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polet [3.4K]

Answer:

Step-by-step explanation:

4 0

3 years ago

A recipe for sparkling grape juice calls for 1.5 quarts of sparkling water and .75 quart of grape juice. A. How much sparkling w

cluponka [151]

Answer: We need to mix 18 quarts of sparkling water with 9 quarts of grape juice.

We need to mix 1.875 quarts of grape juice with 3.75 quarts of sparkling water.

Step-by-step explanation:

Given: A recipe for sparkling grape juice calls for 1.5 quarts of sparkling water and .75 quart of grape juice.

Since, for recipe of sparkling grape juice , they should be used in same proportion.

Let x be the amount of sparkling water need to mix with 9 quarts of grape juice, then

$\frac{x}{9}=\frac{1.5}{0.75}\\\Rightarrow\ x=\frac{1.5\times9}{0.75}\\\Rightarrow\ x=18$

We need to mix 18 quarts of sparkling water with 9 quarts of grape juice.

Let y be the amount of grape juice need to mix with 3.75 quarts of sparkling water, then

$\frac{3.75}{y}=\frac{1.5}{0.75}\\\Rightarrow\ y=\frac{3.75\times0.75}{1.5}\\\Rightarrow\ y=1.875$

We need to mix 1.875 quarts of grape juice with 3.75 quarts of sparkling water.

4 0

3 years ago

Steps for solving 3x + 18 = 54 are shown.

Lostsunrise [7]

By subtracting 18 to both sides you are separating the 3x because you are not ready to isolate the variable (x) in step 1

7 0

3 years ago

The area of the trapezoid is 40 square units.

Whitepunk [10]

Answer:

5 units

Step-by-step explanation:

Image of the trapezoid is attached.

To find the height of the trapezoid (image attached), let's take the formula for area of a trapezoid.

The formula for area of a trapezoid is:

$A = (\frac{a + b}{2}) h$

Here, a and b represents the bases of the trapezoid.

a = 6

b = 10

h which represents height is unknown.

A = 40

Substitute figures:

$40 = (\frac{6 + 10}{2}) h$

$40 = (\frac{16}{2}) h$

$40 = 8 * h$

Solve for h:

$h = \frac{40}{8}$

$h = 5$

The height of the trapezoid is 5 units

4 0

3 years ago

Read 2 more answers

7,5 +-7,5+-7-2+7-2 what is the perimeter

garik1379 [7]

If you add them all up it would be 6.

7 0

4 years ago