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crimeas [40]
3 years ago
14

I need help with this question!

Mathematics
1 answer:
ki77a [65]3 years ago
4 0

Answer:

A

Step-by-step explanation:

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A highway engineer specifies that a certain section of roadway covering a horizontal distance of 2km should have a downgrade of
Zigmanuir [339]

Answer:

0.16km

Step-by-step explanation:

A highway engineer wants to compute  the change in elevation of a section of road. The horizontal distance of this section of road is 2km and downgrade is 8%

The slope formula is given by

m=\frac{rise}{run}=\frac{x}{y}

m = 8% = 8/100

run = y = 2km

m =\frac{x}{y}

\frac{8}{100} =\frac{x}{2}

\frac{2*8}{100} =x

x=\frac{16}{100} =0.16km

Verification:

m=\frac{0.16}{2}= 0.08=8%%

3 0
3 years ago
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If there are 350 boys in a school with a total of 800 students, then what percent of the students are girls?
tester [92]

Answer:

56.25%

Step-by-step explanation:

800 - 350 = 450

1% of 800 = 8 (800 divided by 100)

450 divided by 8 = 56.25

4 0
3 years ago
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The ratio of children to teachers at preschool is 14:5. How many children are at the preschool if there are 30 teachers
elena55 [62]

If the ratio is 14 childen to every 5 teachers, and there are thirty teachers... there are 84 children. hope I could help!

6 0
2 years ago
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Please help me with this. This problem is actually making my life worst at the moment. Please, someone, help me.
Xelga [282]
OMG !!!!!!! I HAVE THE SAME QUESTION TO ASK

7 0
3 years ago
Completely factor the polynomial: x^2 - 13x + 12
posledela

(x-12)(x-1) is the answer.

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2 years ago
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