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3 years ago

Help please , 20 points

Mathematics

2 answers:

alex41 [277]3 years ago

8 0

The top-left one because 3ba is the same as 3ab

CaHeK987 [17]3 years ago

8 0

The first one 12b one

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Two thirds of a number decreased by 27 is atleast 9

Alisiya [41]

2/3x-27 $\geq$ 9

x $\geq$ 54

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3 years ago

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Mr. Scruggs got some money for his birthday. He spent 1/5 of it on dog treats. Then, he divided the remainder equally among his

Mariulka [41]

Answer:

a. $\frac{4a}{15}$

b. $225

Step-by-step explanation:

Let Mr. Scruggs got money for his birthday be 'a'

He spent $\frac{1}{5}$ of it on dog treats = a × $\frac{1}{5}$

= $\frac{1}{5}a$

remainder amount would be = a - $\frac{1}{5}a$

= $\frac{4a}{5}$

Then he divided the remainder money equally among 3 favorite charities.

$\frac{\frac{4a}{5}}{3}$

= $\frac{4a}{15}$

a. Each charity receive $\frac{4a}{15}$

b. If he donated $60 to each charity.

$\frac{4a}{15}=60$

$a=\frac{15\times 60}{4}$

a = $225

Mr. Scruggs received $225 for his birthday.

6 0

3 years ago

Find the x-intercept of the following equation. Simplify your answer.

lawyer [7]

Answer:

y intercept=3/2

Step-by-step explanation:

First of all, write it in slope intercept form

y=-1/6x+3/2

y=mx+b

b=y-intercept

y intercept=3/2

7 0

3 years ago

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For the function f(x)=10(x+5)−9, find the value of f(3)

Sergio [31]

Answer:

f(3) = 71

Step-by-step explanation:

f(x) = 10(x + 5) − 9

f(3) = 10(3 + 5) - 9

f(3) = 10(8) - 9

f(3) = 80 - 9

f(3) = 71

3 0

3 years ago

How much interest will be earned in three years from $730 placed in a savings account at 6.5% simple interest?

mina [271]

Answer: $142.35. If you are talking about a total, that would be $872.35.

Step-by-step explanation: 6.5% of $730 is $47.45. Multiply this by 3 and you get $142.35.

Hope this helps!

8 0

4 years ago