3 years ago

I need help on a question. Could someone help me?

Mathematics

1 answer:

mafiozo [28]3 years ago

8 0

Answer:

Step-by-step explanation:

The total sum of the degrees in a triangle is 180, so, if we subtract 116 from 180, we get 64. Since there are still 2 corners left, we divide 64 by 2 and get 32. So, x =32

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Which expression is equivalent to

Nutka1998 [239]

Answer:1/5

if u do the work in ur head by adding and divide then multiplying the fractions and then divided it by 2.231 u get 1/5 on a calculator

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2 years ago

In his boat, Sheldon can travel 45 mi downstream in the same time that it takes to travel 9 mi upstream. If the rate of the curr

Nataliya [291]

Answer:

9 mph

Step-by-step explanation:

-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

$Speed=\frac{Distance}{Time}\\\\\#Upstream\\(u-6)t=9\\\\\#Donwstream\\\\(u+6)t=45$

#Since t is equal in both, we can do away with t.

#We the divide the downstream equation by the upstream equation as:

$\frac{u+6}{u-6}=\frac{45}{9}\\\\(u+6)=5(u-6)\\\\u+6=5u-30\\\\4u=36\\\\u=9$

Hence, the boat's speed in still water is 9 mph

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3 years ago

What is the solution to this equation x-16=-8

arsen [322]

X-16=-8
Add 16 on both sides
x=-8+16
And solve; your answer will be
x=8

3 0

3 years ago

a cell phone store sells the basic model of a phone for $30 and the upgraded model for $100 when a customer signs a two-year agr

alisha [4.7K]

30b + 100u = 900
5b + 25u = 200....multiply by -6
------------------
30b + 100u = 900
-30b - 150u = - 1200 (result of multiplying by -6)
------------------add
-50u = - 300
u = 6 <== upgrated phones sold

30b + 100u = 900
30b + 100(6) = 900
30b + 600 = 900
30b = 900 - 600
30b = 300
b = 10 <== basic phones sold

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3 years ago

Read 2 more answers

I HAVE NO CLUE WHAT IS <br>7+9=?<br>I CANT FIND MY CALCULATOR AND RAN OUT OF FINGERS

Alecsey [184]

Answer:

the correct answer is 16

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3 years ago