All categories

3 years ago

PLEASE DO AS MUCH AS YOU CAN! THANKS!

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

6 0

Answer:

1. 2x+20

2. 8x-40

3. 7x+21

4. 8x-4

5. 15x+5

6. 12x+15

7. 20x-50

8. 21x+14

9. 24x-6

10. 45x-18

11. 18x-8

12. 30x+9

Explanation: Distributive Property

You might be interested in

Sally begins hiking at an elevation of 224 feet. Then, she descends 131 feet and climbs 67 feet higher than her current position

Deffense [45]

Answer:

-3

Three feet below the initial elevation

Step-by-step explanation:

The initial elevation is 224 feet.

We take descent to be negative and ascent to be positive.

The numerical addition expression is

$224+-131+67+-163$

We simplify this to obtain:

$224-131+67-163=-3$

The negative sign means Sally is 3 feet below his initial elevation

5 0

2 years ago

A teacher writes the name of each of her 25 students on a slip of paper and places the papers in a box. To call on a student, sh

Gre4nikov [31]

Answer:

0.56

Step-by-step explanation:

There are 14 girls, and a total of 25 students. So the probability of selecting a girl is P = 14/25 = 0.56.

8 0

3 years ago

Read 2 more answers

When Mrs. Stewart makes pie dough, she uses 2/3 cup of shortening for every 2 1/2 cups of flour which proportion could be used t

zloy xaker [14]

Answer:

The amount of flour Mrs.Stewart needs for 5 cups of shortening $=\frac{75}{4} =18\tfrac{3}{4}$ cups.

Step-by-step explanation:

Mrs.Stewart pie dough needs $\frac{2}{3}$ cups of shortening for $2\tfrac{1}{2}=\frac{5}{2}$ cups of flour.

Now we assume that the shortening needed for $x$ cups of flour is $y$ cups.

Accordingly we can arrange the ratios.

So for one cup of shortening how many cups of flour is needed we have to use the unitary method:

$\frac{cups\ of flour\ (x)}{cups\ of\ shortening\ (y)} =\frac{x}{y} =\frac{5/2}{2/3}$

Plugging the value of $y=5$ as it is number of cups of shortening Mrs.Stewart have used.

And multiplying both sides with $5$ .

Number of cups of flour needed when $5$ cups of shortenings are used $(x) =\frac{x}{y} =\frac{5/2}{2/3}$ .

So, $(x)=\frac{5\times 3\times 5}{2\times 2} =\frac{75}{4} = 18\tfrac{3}{4}$

The amount of floor Mrs.Stewart needed for $5$ cups of shortening $= 18\tfrac{3}{4}\$ cups of floor.

3 0

2 years ago

-6h plus 4 - 3plus h equals 11

olga55 [171]

$- 6h + 4 - 3 + h = 11$
So we start by combining like terms;
$- 6h + h = - 5h$
$4 - 3 = 1$
Now we have;
$- 5h + 1 = 11$
We then subtract 1 from both sides;
$- 5h + 1 = 11$
$- 5h = 10$
Then we divide both sides by 5;
$- 5h = 10$
$- 5h \div - 5h = h$
$10 \div - 5h = - 2$
Leaving the final answer to be h = -2

5 0

3 years ago

Which equation would help find the measure of

Juliette [100K]

Answer:

x + 52 + 78 = 180

Step-by-step explanation:

By angle sum property of a triangle:

$x + 52 + 78 = 180$

5 0

3 years ago

Read 2 more answers