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balu736 [363]
2 years ago
14

At 4 p.m., the temperature started to change drastically. Each hour, for three hours, the temperature decreased by 7°F. Which ex

pression best shows another way to write the product for the temperature change?
Mathematics
2 answers:
attashe74 [19]2 years ago
6 0

Answer:

The correct option is A

Step-by-step explanation:

The question is incomplete because the options are not given for the question. Lets complete the question first. The options for this question are given below.

A)   (-1)(7+7+7)

B)   (-7)+(-7)+(-7)+(-7)

C)   7+7+7

D)   7+7+7+7

Now look at the conditions given. Supoose at 4pm, the temperature is x°F at 4pm. As temperature is decreasing 7°F every hours, and it happenss for 4 hours.

We can say that after one hour, temperature is:

5pm: x°F - 7°F

After two hours:

6pm: x°F - 7°F - 7°F

After three hours:

7pm: x°F - 7°F - 7°F - 7°F

Hence, the expression is given by:

-7 - 7 - 7

or

(-1)(7+7+7)

Ronch [10]2 years ago
5 0

Answer:

(-1)(7+7+7)

Step-by-step explanation:

I got it right on the test

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The formula F=9/5C+32 is used to convert Celsius to Fahrenheit temperature. If the temperature is 20 C what is it in Fahrenheit?
ahrayia [7]
F = C x 9/5 + 32
(20) x 9/5 + 32
= 68
5 0
3 years ago
Ameer uses \dfrac14 4 1 ​ start fraction, 1, divided by, 4, end fraction of a bottle of shampoo to give each of his dogs a bath.
svet-max [94.6K]

Answer:

138 3/8

Step-by-step explanation:

total shampoo used for 555 dogs = 1/4 x 555 = 138 3/8 bottles

7 0
2 years ago
Comparison Keshawn goes to the store to buy milk for his baby sister. He sees the
GalinKa [24]

Answer:

he should buy 128 oz of milk for 6.49

Step-by-step explanation:

2.49 divided by 32 equals 7 cents unless your rounding which would be 8 cents

4.99 divided by 64 is 7 cents too 8 if rounding

6.49 divided buy 128 oz would equal 5 cents so it is the cheapest.

4 0
2 years ago
Devon and his friends bought strawberry wafers for $3 per packet and chocolate wafers for $1 per packet at a carnival. They spen
Irina-Kira [14]
Hi there!

PART A:
The system of equations we would use would be:
x + y = 22 (amount of items)
3x + 1y = 30 (cost)

Variables:
x = the amount of strawberry wafers bought at the price of $3
y = the amount of chocolate wafers bought at the price of $1

PART B:
To solve, we'll use substitution because we can easily isolate a variable using the first equation.

Work:
x + y = 22 (first equation)
y = 22 - x (isolating a variable)
3x + 1y = 30 (second equation)
3x + (22 - x) = 30 (substituting into the second equation)
2x + 22 = 30 (simplifying)
2x = 8 (subtracting)
x = 4 strawberry wafers
4 + y = 22 (substituting x into the first equation to solve for y)
y = 18 chocolate wafers

ANSWER:
They bought 4 strawberry wafers and 18 chocolate wafers.

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
8 0
3 years ago
GIVING OUT BRAINLIEST + 80 PTS , GO TO MY PROFLE AND ANSWER!
Arada [10]

Answer:

I will answer the Question

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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