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vladimir2022 [97]
2 years ago
13

Pls help me with this

Mathematics
1 answer:
kvasek [131]2 years ago
7 0

Answer:

1st one is positive

2nd one is negative

3rd one is negative

4th one is positive

Step-by-step explanation:

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the ratio of boys to boys to girls in a class is 5:3.There are 32 students in the class.How many more boys than girls are there.
erastovalidia [21]

Answer:

8 more boys

Step-by-step explanation:

5 + 3 = 8

32 ÷ 8 = 4

5 × 4 = 20

3 × 4 = 12

20 - 12 = 8

6 0
3 years ago
A cylindrical water tank is being filled with a hose. The depth of the water increases by 114 ft per hour. How many hours will i
Nimfa-mama [501]
2 hours and 14 min. 114 + 114 = 228. 312 - 228 = 84.  114 / 2 = 57. 84 - 57 = 27. 114 / 60 = 1.9. 27 / 1.9 = 14
4 0
3 years ago
9. Which of these was an example of US industrial mobilization for war? (5.1.B) A. Increased factory production of tanks and pla
blagie [28]

Answer:

A

Step-by-step explanation:

Tanks are the Backbone of the Military, they are needed to destroy the Axis Powers during WW2, they also used Captured Enemy Tanks for studying and Produce New Tanks to Counter them.

5 0
3 years ago
2x + 25x9 +3<br> What would x be for it to be equal
andrey2020 [161]

Answer:

X=144

Step-by-step explanation:

2X+25×9+3=0

2X+288

2X= -288

X= -144

8 0
3 years ago
The probability that a new advertising campaign will increase sales is assessed as being 0.80. The probability that the cost of
tatuchka [14]

Answer:

The probability that the cost is kept within budget or the campaign will increase sales is 0.88

Step-by-step explanation:

The probability that the cost is kept within budget (event A) <u>or</u> the campaign will increase sales (event B) is the <u>union</u> of the probability of those two events. By basic properties of probability, this is:

P(A ∪ B) = P(A) + P (B) - P(A ∩ B)

and for independent events:

P(A ∩ B) = P(A) * P(B)

So:

P(A ∪ B) = 0.80 + 0.40 - (0.80*0.40) = 1.20 - 0.32 = 0.88

5 0
3 years ago
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