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3 years ago

What is the value of x for the given equation? 4-2(x + 7) = 3(x + 5) S.

Mathematics

2 answers:

Len [333]3 years ago

4 0

Answer:

-5

Step-by-step explanation:

inysia [295]3 years ago

3 0

Answer:

x=-5

Step-by-step explanation:

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Select the expressions that are equivalent to 7(7w).

Jet001 [13]

Answer:

answers are A and C

Step-by-step explanation:

they both will equal 49w

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3 years ago

A test has 20 questions. If Peter gets 80% correct, how many questions did Peter miss?

Oduvanchick [21]

Answer:

Step-by-step explanation:

20 x 0.80

16 - 20

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3 years ago

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3 years ago

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8. Janine has 3/5

Scorpion4ik [409]

Answer:

Part a) Each friend will receive $\frac{3}{10}\ pounds$

Part b) $\frac{19}{20}\ pounds$ or $0.95\ pounds$

Step-by-step explanation:

Part a)

we know that

To calculate the weight of peanuts in pounds that each friend will

receive, divide the total pounds of peanuts by two

$\frac{(3/5)}{2}=\frac{3}{10}\ pounds$

Part b)

Let

x-----> pounds of extra peanuts the friend needs to end up with 2 pounds of peanuts

we know that

$2=x+\frac{3}{10}+\frac{3}{4}$

Solve for x

$x=2-(\frac{3}{10}+\frac{3}{4})$

Multiply by 40 both sides

$40x=80-(12+30)$

$40x=38$

$x=\frac{38}{40}\ pounds$

Simplify

$x=\frac{19}{20}\ pounds$ or $x=0.95\ pounds$

5 0

3 years ago

A 15 foot board rest against a wall. The angle that the board makes with the ground is 60 degrees. How far is the base of rhe bo

Iteru [2.4K]

Answer:

7.5'

Step-by-step explanation:

Use trigonometry.

Draw it out.

the hypotenuse is 15.

You want to find the adjacent side.

Use cosine (the adjacent over hypotenuse)

cos60=A/15

15cos60=A

7.5=A

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3 years ago