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3 years ago

Solve the equation. 20 = –d + 16 A. 4 B. –10 C. –6 D. –4

1 answer:

3 0

Hello there
The correct answer to this question would be D: negative 4

This is because the negatives from negative 4 and negative d would cancel each other out, to make it a positive 4, resulting in the equation being: 20 = 4 + 16 , which is true

I hope this helped ^^

You might be interested in

If a triangle has side lengths 7, 10, and 12, is it a right triangle??

Vesnalui [34]

Answer:

No. Remember, a right angle must have a 90 degree angle. We can find the lengths with the Pythagorean Theorem.

Step-by-step explanation:

Given the length 7, 10, and 12, we can assume that 12 is the hypotenuse (it is the longest length).

- we can use 7 and 10 interchangeably.

Fill in the equation, $a^2 + b^2 = c^2$

where c = 12, and a or b = 7 or 10.

To indicate if the given lengths would form a right angle, we can only input 7 or 10, not both.

Therefore, $7^2 + b^2 = 12^2$ or $10^2 + b^2 = 12^2$

$7^2 + b^2 = 12^2$ ==> 49 + b^2 = 144 ==> b= $\sqrt{95$ ==> 9.746

b= 9.7, not 10.

$10^2 + b^2 = 12^2$ ==> 100 + b^2 = 144 ==> b = $\sqrt{44$ ==> 6.633 

b= 6.6, not 7.

Therefore, the lengths 7, 10, and 12, does NOT make a right triangle.

Hope this helps!

5 0

3 years ago

An outdoor spigot at the school has a leak and is dripping water. A student counted eighty drops of water in five minutes and no

lianna [129]

Answer:

D. 108 liters

Step-by-step explanation:

Given that the leak is ;

5 drops = 5 minutes

?= 4 weeks

Find number of hours in 4 weeks

1 week=7days

4 weeks=?--------------cross multiply

4×7=28 days

1 day=24 hours

28 days=?--------------cross multiply

28×24=672 hours

Hour= 60 minutes

672 hours=?

672×60=40320 minutes

Finding the leakage in 4 weeks

80 drops= 5 minutes

?=40320 minutes------------cross multiplication

(40320×80)÷5 =645120 drops

Finding the liters of water wasted in 4 weeks

60 drops of water= 10 milliliters

645120 drops of water=?-------------cross multiply

(645120×10)÷60 =107520 milliliters

But you know

1 milliliter=0.001 liters

107520 milliliters=?-----------cross multiply

107520×0.001

=107.52 liters

=108 liters

5 0

3 years ago

Solve for x -7x-5=-10x-26

Tpy6a [65]

Step-by-step explanation:

-7x+10x=-26+5

3x=-21

x=-7

8 0

3 years ago

Read 2 more answers

micheal participate in several motocross races he has more medals than gold medals the number of bronze medals he has won is hal

denis23 [38]

Answer attached as picture with explanation. Please check.

Answered by Benjemin

6 0

2 years ago

Make b be the main item a=2-(1/1+b)

pantera1 [17]

Answer:

b=1-a

Step-by-step explanation:

Inside parenthesis

1/1=1

(replace it with that)

Open parenthesis

a=2-1-b

simplify numbers

a=1-b

isolate b

a-1=-b

multiple each side by negative 1

1-a=b

4 0

3 years ago