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gizmo_the_mogwai [7]
4 years ago
9

If (A:20:4:16) is a proportion the find out the value of A fastly​

Mathematics
1 answer:
vladimir2022 [97]4 years ago
6 0

Answer: A = 5

Step-by-step explanation:

I'll rewrite this as fractions.

\frac{A}{20}=\frac{4}{16}

Solve for A,

A=\frac{20*4}{16}\\ A=\frac{80}{16}

A=5

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16- X = -2<br> Solve for x
Licemer1 [7]

Answer: x=18

Step-by-step explanation: 16-18=-2

Good luck! :)

7 0
3 years ago
Read 2 more answers
A Chevy Malibu has a fuel capacity of 18.5 gallons. This vehicle averages 666 miles per tank. Assume the relationship between fu
Nuetrik [128]

Answer:

180 miles

Step-by-step explanation:

Step one:

capacity of tank= 18.5gallons

vehicle averages 666 miles per tank.

Hence, the vehicle can travel 666 miles on 18.5 gallons

Required

The distance covered on 5 gallons

Step two:

vehicle can travel 666 miles on 18.5 gallons

the vehicle will go x miles on 5 gallons

cross multiply we have

5*666= 18.5*x

3330=18.5x

divide both sides by 18.5

x= 3330/18.5

x=180 miles

5 0
3 years ago
A survey of 11 students showed that 8 liked science, 7 liked mathematics, and 4 liked both. How many students just liked science
andreyandreev [35.5K]

Answer:

4 I guess..........not sure but my answer is 4

5 0
3 years ago
the total cost for material and labor for performing a blood test is $38.52. if the lab adds 15 2/5% to this cost for profit, wh
just olya [345]

Answer:

$44.45

Step-by-step explanation:

Convert 15 2/5% to decimal, =0.154

38.52+(38.52x0.154) (do this to add the cost of the % increase)

≈$44.45.

6 0
3 years ago
Read 2 more answers
The lifespan of a 60-watt lightbulb produced by a company is normally distributed with a mean of 1450 hours and a standard devia
Flura [38]
To evaluate the probability that the lifespan will be between 1440 and 1465 hours will be given by:
P(1440<x<1465)
using the z-score formula we obtain:
z=(x-μ)/σ
where:
μ=1450
σ=8.5
hence
when x=1440
z=(1440-1450)/8.5
z=-1.18
P(z<-1.18)=0.1190

when x=1465
z=(1465-1450)/8.5
z=1.77
P(z<1.77)=0.9625

hence:
P(1440<x<1465)
=0.9625-0.1180
=0.8445
8 0
3 years ago
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