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3 years ago

Solve the following equations for x 3/4=3/8x-3/2

Mathematics

1 answer:

4vir4ik [10]3 years ago

7 0

Answer:

x = 6

Step-by-step explanation:

Given

$\frac{3}{4}$ = $\frac{3}{8}$ x - $\frac{3}{2}$

Multiply through by 8 ( the LCM of 2, 4, 8 ) to clear the fractions

6 = 3x - 12 ( add 12 to both sides )

18 = 3x ( divide both sides by 3 )

6 = x , that is x = 6

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Solve a÷b(×)-c=0 for x Help me please :)

adell [148]

A b x−c=0 Step 1: Multiply both sides by b. ax−bc=0 Step 2: Add bc to both sides. ax−bc+bc=0+bc ax=bc Step 3: Divide both sides by x. ax x = bc x a= bc x Answer: a= bc x

3 0

2 years ago

The Thomas family went for a Sunday drive. Before they left, Mr. Thomas noticed the gas tank was ¾ full. When they returned home

JulijaS [17]

Answer:

7.5 gallons

Step-by-step explanation:

Given:

The Thomas family went for a Sunday drive.

Before they left, Mr. Thomas noticed the gas tank was ¾ full.

When they returned home the gas tank was ⅓ full.

Total capacity of the gas tank = 18 gallons

Question asked:

How many gallons of gas did the car use on the drive?

Solution:

Before they left, quantity of gas in the tank = $\frac{3}{4} \times18=\frac{54}{4} =13.5\ gallons$

When they returned, quantity of gas in the tank = $\frac{1}{3} \times18=\frac{18}{3} =6\ gallons$

Quantity of gas used on the drive = 13.5 - 6 = 7.5 gallons

Therefore, 7.5 gallons of gas used on the drive by Thomas family.

4 0

2 years ago

Photo above please answer

alina1380 [7]

I THINK the answer would be around 2/3/4 paper clips, I'm not sure. And keep in mind, I;m not responsible for any wrong answers/ invalid responses.

5 0

3 years ago

Given that the diameter of Circle A is 6 cm , and the radius of Circle B is 18 cm , what can be concluded about the two circles?

ELEN [110]

Answer:

The radius of circle B is 6 times greater than the radius of circle A

The area of circle B is 36 times greater than the area of circle A

Step-by-step explanation:

we have

Circle A

$D=6\ cm$

The radius of circle A is

$r=6/2=3\ cm$ -----> the radius is half the diameter

Circle B

$r=18\ cm$

Compare the radius of both circles

$3\ cm< 18\ cm$

$18=6(3)$

The radius of circle B is six times greater than the radius of circle A

Remember that , if two figures are similar, then the ratio of its areas is equal to the scale factor squared

All circles are similar

In this problem the scale factor is 6

$6^{2}=36$

therefore

The area of circle B is 36 times greater than the area of circle A

8 0

2 years ago

Amanda drove for 3 hours through different traffic conditions. her average speed was 50mph for the first hour, 72 mph for the se

Neko [114]

Distance traveled in the first hour = 50 miles

Distance traveled in the second hour = 72 miles

Distance traveled in the third hour = 46 miles

Total distance = 50 + 72 + 46 = 168 miles

23 miles = 1 gallon

168 ÷ 23 = 7.30 gallons (nearest hundredth)

Answer: 7.30 gallons

7 0

2 years ago