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2 years ago

PLEASE HELP ASAP!!!!!!!!!

Mathematics

1 answer:

Butoxors [25]2 years ago

8 0

Answer:

it’s the last one

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A and B are complementary angles. If mA=(x+8)° and mB =(8x+1), find the measure of A

Black_prince [1.1K]

Answer:

$\angle A=17\textdegree$

Step-by-step explanation:

We know that A and B are complementary angles. So, they must add up to 90°. As an equation:

$\angle A+\angle B=90$

Since we know their equations, substitute:

$(x+8)+(8x+1)=90$

Solve for x. Combine like terms on the left:

$9x+9=90$

Subtract 9 from both sides:

$9x=81$

Divide both sides by 9:

$x=9$

So, the value of x is 9.

We want to find A. So, let's use the equation for A:

$\angle A=x+8$

Substitute 9 for x:

$\angle A=9+8$

Add:

$\angle A=17\textdegree$

So, the measure of A is 17°.

4 0

3 years ago

lf the owner has $700 to spend on trees, how many can he purchase? Show or explain your work. Based on the table, what will be t

gavmur [86]

Answer: I need the table to be able to answer

5 0

3 years ago

Alyn drives 20.4 miles in 17 minutes.

Galina-37 [17]

Answer:

12 mph

Step-by-step explanation:

Speed = distance/time

Distance = 20.4 miles
Time = 17 minutes = 17*1/60 hours = 17/60 hours

Speed is:

20.4 : 17/60 =
20.4*60/17 =
72 mph

Alyn exceeded the limit by:

72 - 60 = 12 mph

5 0

3 years ago

3w-13w= -20???????????

Akimi4 [234]

3w-13w=-20

Combine like terms

-10w=-20

divide both sides by -10

w=2

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2 years ago

A diabetes drug cost $78 online. This cost is 75% of the cost of the

alexgriva [62]

Answer:

$104

Step-by-step explanation:

If the cost in the store is x we can write:

75%x = 78

0.75x = 78

x = 78 / 0.75 = 104

5 0

3 years ago

Read 2 more answers