3 years ago

I'll give brainliest to correct answer.

Mathematics

1 answer:

Bogdan [553]3 years ago

5 0

Answer:

Step-by-step explanation:

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The ratio of girls to boys in the ninth grade is 5:4. if there are 144 boys in the ninth grade, how many girls are there?

taurus [48]

$144 \div 4 = 36 \\ 36 \times 5 = 180$
the answer is b

3 0

4 years ago

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If it takes Ashley 3 seconds to run from the batters box to first base at an average speed of 6.5 m/sec, what is the distance th

Zanzabum

I'm pretty sure you would do 6.5 times 3 and that would give you 19.5

5 0

3 years ago

Smith Engineering is in the process of reviewing the salaries of their surveyors. During this review, the company found that an

siniylev [52]

Answer:

T = 3.5 hours

Step-by-step explanation:

this is a rate problem.

an experienced surveyor takes 7 hours to survey a roadbed

an apprentice surveyor takes 9 hours to survey a roadbed

the rate of the experienced surveyor = $\frac{1}{7}$

the rate of the apprentice surveyor = $\frac{1}{9}$

if the two work together , $\frac{1}{T} =\frac{1}{7} +\frac{1}{9}$

T = $\frac{56}{16}$

T = 3.5 hours

3 0

3 years ago

Help! I don't know how to do this! ASAP!

Leya [2.2K]

Answer:

1.75a-11 (or) 1 3/4a-11

Step-by-step explanation:

3.75a-12-2a+1=

1.75a-11

7 0

3 years ago

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What is the equation of the line passing through the points (2, –1) and (5, –10) in slope-intercept form?

adoni [48]

(2,-1)(5,-10)
slope = (-10 - (-1) / (5 - 2) = -9/3 = -3

y = mx + b
slope(m) = -3
use either of ur points....(2,-1)...x = 2 and y = -1
now we sub and find b, the y int
-1 = -3(2) + b
-1 = -6 + b
-1 + 6 = b
5 = b

so ur equation is : y = -3x + 5 <==

4 0

3 years ago