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2 years ago

Someone help me out please I can’t figure out this question

Mathematics

2 answers:

GaryK [48]2 years ago

5 0

Answer:

She should have added 3, not subtracted 3, to both sides

Step-by-step explanation:

this problem calls for the inverse of operations

$x-3=7\\\\\\3+x-3=7+3\\\\x=10$

Delvig [45]2 years ago

5 0

Answer:

She should have added 3, not subtracted, to both sides

Step-by-step explanation:

You're trying to get X by itself and to do that you need to add 3 to cancel out the -3.

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Find the area of the irregular figure. Round to the nearest hundredth.

RSB [31]

Answer:

$67.5\text{ [square units]}$

Step-by-step explanation:

The composite figure consists of one rectangle and two triangles. We can add up the area of these individual shapes to find the total area of the irregular figure.

<u>Formulas</u>:

Area of rectangle with base $b$ and height $h$ : $A=bh$
Area of triangle with base $b$ and height $h$ : $A=\frac{1}{2}bh$

By definition, the base and height must intersect at a 90 degree angle.

The rectangle has a base of 10 and a height of 5. Therefore, its area is $A=10\cdot 5=50$ .

The smaller triangle to the left of the rectangle has a base of 2 and a height of 5. Therefore, its area is $A=\frac{1}{2}\cdot 2\cdot 5=5$ .

Finally, the larger triangle on top of the rectangle has a base of 5 and a height of 5. Therefore, its area is $A=\frac{1}{2}\cdot 5\cdot 5=12.5$ .

Thus, the area of the total irregular figure is:

$50+5+12.5=\boxed{67.5\text{ [square units]}}$

7 0

2 years ago

Charlotte reads 8 1/3 pages of a book of in 10 minutes. What is her average reading rate in pages per minute?

shtirl [24]

The answer as a fraction is 5/6

We want to figure out how many pages Charlotte can read in 1 minute. Since we know how many pages she can read in 10 minutes, in order to find out how many she reads in 1 minute, simply do 10 divided by 8 1/3. Which will give you your answer, 5/6.

3 0

2 years ago

An auto dealership wants to know the average amount of money its customers can spend on a car. The dealership surveys 50 random

KonstantinChe [14]

Hi I would have to say 350

6 0

2 years ago

Read 2 more answers

Given f(x) = 10 - 2x, find f(7).

Dmitry_Shevchenko [17]

Answer:

-4

Step-by-step explanation:

f(x) = 10 - 2x,

Let x= 7

f(7) = 10 2(7)

= 10-14

= -4

7 0

3 years ago

I need help on what to put in the boxes.

Leona [35]

Just divide the y numbers by the x numbers and that's it

7 0

2 years ago