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3 years ago

What is the answer to this please help me. 5th grader.

Mathematics

2 answers:

olganol [36]3 years ago

8 0

A=(6*2.5)(7*2.5)

A=15*17.5

A=262.5 cm^2

Rainbow [258]3 years ago

7 0

You have to add 2 and a half 1/2 two times

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{(a, b), (a + 2, b - 4) }

Nataliya [291]

Answer:

$y=-2x+2a+b$

Step-by-step explanation:

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(a, b), (a + 2, b - 4)

substitute the values in the formula

$m=\frac{b-4-b}{a+2-a}$

$m=\frac{-4}{2}$

$m=-2$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=-2$

$point\ (a,b)$

substitute

$y-b=-2(x-a)$

step 3

Convert to slope-intercept form

$y=mx+b$

isolate the variable y

$y-b=-2x+2a$

$y=-2x+2a+b$

3 0

3 years ago

Saqui buys streamers for \$0.09$0.09dollar sign, 0, point, 09 per meter.

Colt1911 [192]

Answer:

$0.27

Step-by-step explanation:

1/4 The ratio of meters of streamers to cost of streamers is 1 : 0.09

We want to know the ratio of centimeters of streamers to cost of
streamers.

2/4 We need to convert meters to centimeters.

There are 100 centimeters in 1 meter.

So, if 1 meter of streamers costs $0.09, then 100 centimeters of
streamers also cost $0.09.

3/4 The ratio centimeters of streamers to cost for 300 centimeters of
streamers.

Now, we can find an equivalent ratio to find the cost for 300
centimeters of streamers.

4/4 The streamers cost $0.27 per 300 centimeters.

5 0

3 years ago

What is the product? PLSS HELP!!

STALIN [3.7K]

The answer would be [3 -12 15 -21 ]

6 0

3 years ago

PLEASE HELP EASY!!

Orlov [11]

Answer:

$2000

Step-by-step explanation:

The amount of interest you pay (for simple interest) is the product of the original amount, the interest rate and the time in years. Let x be the original amount (how much money she borrowed):

720=x(0.09)(4)

720=0.36x

x=2000

8 0

3 years ago

Laurent invested some money in a bank account.

zavuch27 [327]

Answer:

1.04

Step-by-step explanation:

"Complete the following sentence about the yearly rate of change in the amount of money in the account. Round your answer to two decimal places.

Every year, the amount of money in the account increases by a factor of _."

Mdecade(t) = 4900 (1.5)^t, where t is in decades.

One year is 0.1 decades, so M increases by a factor of:

1.5^0.1 = 1.04

4 0

3 years ago