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3 years ago

12

From the beginning of the day the temperature rose 15° so that by 4 pm it was 87°. What was the temperature at the start of the

day?
A)72°
B)77°
C)82°
D)102°

2 answers:

Pavlova-9 [17]3 years ago

5 0

Answer:

the answer is A)72°

Step-by-step explanation:

zubka84 [21]3 years ago

4 0

Your answer is A, 72°.

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The ratio of the side length of a square to the square's perimeter is always 1 to 4.

makvit [3.9K]

Answer:

Side length of square (inches): 1 ,2, 4, 7

Perimeter of square (inches). : 4, 8, 16, 28

Step-by-step explanation:

Ratio is 1:4 (S:P).

So:

#:8, #=2. This is because 2/8 and 1/4 both = 0.25.

#:16, #=4. 4/16=0.25

7:#, #=28. 4x7=28, 7/28=0.25

Hope that helps

7 0

2 years ago

64, –48, 36, –27, ...<br><br> Which formula can be used to describe the sequence?

nordsb [41]

Answer:

$\boxed{a_n \: = \: 64 \: \times \: ( - \frac{3}{4} ) ^{n \: - \: 1} }$

Step-by-step explanation:

We first compute the ratio of this geometric sequence.

$r \: = \: \frac{ - 48}{64} \\ \\ r \: = \: \frac{36}{ - 48} \\ \\ r \: = \: \frac{ - 27}{36}$

We simplify the fractions:

$r \: = \: - \frac{3 }{4} \\ \\ r \: = \: - \frac{3 }{4} \\ \\ r \: = \: - \frac{3 }{4}$

We deduce that it is the common ratio because it is the same between each pair.

$r \: = \: - \frac{3 }{4}$

We use the first term and the common ratio to describe the equation:

$a_1 \: = \: 64; \: r \: = \: - \frac{3 }{4}$

<h3>We apply the data in this formula:</h3>

$\boxed{a_n \: = \: a_1 \: \times \: {r}^{ n \: - \: 1} }$

_______________________

<h3>We apply:</h3>

$\boxed {\bold{a_n \: = \: 64 \: \times \: {( - \frac{3}{4} )}^{ n \: - \: 1} }}$

<u>Data</u>: The unknown "n" is the term you want

<h3><em><u>MissSpanish</u></em></h3>

4 0

2 years ago

Working alone, it take jill 8.4 hours to pick forty bushels of apples. Maria can pick the same amount in 15 hours. If they work

konstantin123 [22]

Answer:

answer is 5.4 hours (rounded)

Step-by-step explanation:

8.4 divided by 40 is 4.76

15 divided by 40 is 2.66

add those two up and it'll be 7.42

7.42 divided by 40 is 5.3908

6 0

2 years ago

In a bouquet of flowers, there are 4 daisies and 11 roses. Write the ratio of daisies to roses in three different ways.

Dominik [7]

The ratio of daisies to roses is.36:1

3 0

2 years ago

Read 2 more answers

Kevin has a negative balance of $10 in his bank account if he deposits $45 into his acc how much money does kevin have after the

Neporo4naja [7]

Answer:

$35

Step-by-step explanation:

-$10 + $45 = $35

4 0

3 years ago