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belka [17]
3 years ago
13

Multiply 5/8⋅4/5. Simplify the answer, if possible. 9/13 1 1/740 20/40 1/2

Mathematics
1 answer:
Fofino [41]3 years ago
6 0

Answer:

1/2

The LCD is 40, so find the rest using expressions and comparisons.

  • 8 × 5 = 40

5/8 × 4/5 = 20/40

  20 ÷ 20 = 1

  40 ÷ 20 = 2

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A number that has only 2 factors
IrinaK [193]

Answer:

I'm pretty sure that all of the Prime numbers only have two factors. Let's say 3 for an example.

Step-by-step explanation:

The number 3 only has the factors of 3 and 1.

The two factors are itself (of course) and 1 (any number can go into one).

Another way to do this if you had to find out an answer like this.

3x1=3. Any number that can go into itself times 1 has only 2 factors.

Or at least I think. This is probably wrong. So Sorry if it is.

3 0
3 years ago
Zachary buys a new car. The original price of the car is $29,100. The price of the car is then reduced by 15% because of a holid
zysi [14]

Answer:

25477.05

Step-by-step explanation:

Based on the given conditions, formulate: 29100 x (3% + 1) x (1 - 15%)

Calculate the sum or difference: 29100 x 1.03 x 0.85

Calculate the product or quotient: 25477.05

8 0
3 years ago
What times five will get you fifty six?
andreyandreev [35.5K]
56 / 5 = 11.2...so 11.2 x 5 = 56
8 0
3 years ago
Triangle XYZ, XY= 80, ZY= 64 XZ= 48 what is the cosine
SVETLANKA909090 [29]

Answer:

cos=\frac{4}{5}

Step-by-step explanation:

Cosine is the adjacent side over the hypotenuse (You can remember sin, cos, and tan by using sohcahtoa or sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite over adjacent). I think a picture would help, too.

I attached a picture of what I think the triangle would look like.

If the picture is right (we're assuming it is) and going with what we're given (the triangle was addressed as triangle XYZ, meaning that <u>angle Y is in the middle and that's the one we'll use</u>).

Looking at my picture then:

cos=\frac{64}{80} \\cos=\frac{8}{10} \\cos=\frac{4}{5} .

6 0
3 years ago
You run one lap around a mile track every 8 minutes. Your friend runs around the same track every 10 minutes. You both start at
Ber [7]

Answer:

Step-by-step explanation:

first runs n+1 laps

and second runs n laps in the same time.

so (n+1)8=10n

10n=8n+8

10n-8n=8

2n=8

n=8/2=4

one lap=1 mile

4 laps=4 miles

4+1=5 laps=5 miles.

first runs 5 miles whereas second runs=4 miles.

3 0
3 years ago
Read 2 more answers
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