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2 years ago

How could you use doubles to help you find the sum of 7+6

Mathematics

2 answers:

Lina20 [59]2 years ago

7 0

7-6=1
6*2=12
12+1=13 bye

timurjin [86]2 years ago

3 0

Use doubles to multipy. 7*2 is 14 right. Hope I helped.

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Answer:

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Step-by-step explanation:

100x8= 800

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2 years ago

If 8 = 54 and v = 17, Find m.

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Answer:

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Step-by-step explanation:

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2 years ago

Absolute value inequalities. 10-4|9y-10|<-94

Ivahew [28]

Answer: $\begin{bmatrix}\mathrm{Solution:}\:&\:y4\:\\ \:\mathrm{Decimal:}&\:y4\\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:-\frac{16}{9}\right)\cup \left(4,\:\infty \:\right)\end{bmatrix}$

Step-by-step explanation:

$10-4\left|9y-10\right|$

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2 years ago

Samantha just opened a new restaurant. She earned $550 on the first day and $750 on the third day that she was open for business

mr Goodwill [35]

Answer:

Step-by-step explanation:

If Samantha's earnings continue to increase at the same rate, this means that her earning is increasing arithmetically.

If she earned $550 in the first day, we can say the first term is $550

If she earned $750 on the third day, we can say the third term is $750

For us to know by how much her money is increasing, we need to find the common difference d formed by the sequence

550, x , 750

T1 = 550

T2 = x

T3 = 750

Common difference d = T2-T1 = T3-T2

x - 550 = 750 - x = d

Let's calculate the second term first i.e x

Since x - 550 = 750 - x = d

x - 550 = 750 - x

Collect like terms

x+x = 750+550

2x = 1300

x = 1300/2

x = 650

d = T2-T1

d = x - T1

d = 650-550

d = 100

Hence her money keeps increasing by $100 each day

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2 years ago

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lorasvet [3.4K]

Domain x|x = -2, 2
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2 years ago