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2 years ago

The Question

Mathematics

1 answer:

77julia77 [94]2 years ago

5 0

Answer:

Step-by-step explanation:

Divide 12 by .40 (the percentage) to figure out what the full number would be.

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Lou's Diner spent $12.80 on 8 pounds

ki77a [65]

Answer:

1lb. = $1.60

7lb. = $11.20

Step-by-step explanation:

$12.80 = x

8 1

cross multiply

8x= $12.80

divide $12.80÷8x

x= $1.60

8 0

3 years ago

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EXTRA POINTS! FIND THE MISSING DIMENSION! NEED ASAP

yanalaym [24]

Answer:

x = 10.5 in

Step-by-step explanation:

The rectangles are similar, thus the ratios of corresponding sides are equal.

that is $\frac{7}{2}$ = $\frac{x}{3}$ ( cross- multiply )

2x = 21 ( divide both sides by 2 )

x = 10.5

7 0

3 years ago

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What is the arc length of a semicircle with a radius of 14?

Deffense [45]

Answer:

Perimeter of the semicircle is the formula r(π+2).

Radius r=14 cm

So, perimeter =14(π+2)... where π= 22/7

=2(22+14)=44+28=72 cm

So , the answer is

72 I guess

Step-by-step explanation:

5 0

2 years ago

Tamika ran 120 meters in 21.6 seconds. Enrique ran 120 meters in 22.4

Alexus [3.1K]

Tamika ran the fastest time at 21.6 seconds in 120 meters because the faster you run the less time you have on your timer.

8 0

2 years ago

Please please help me out

masya89 [10]

Answer: y = 3x + 1

Step-by-step explanation:

The equation is in Slope-Intercept format: y = mx + b where

m is the slope (difference in y's over difference in x's)
b is the y-intercept (value of y when x = 0)

$m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\\\text{Let }(x_1,y_1)=(0,1)\quad \text{and}\quad \text{let }(x_2, y_2)=(1,4)\quad then\\\\m=\dfrac{4-1}{1-0}=\dfrac{3}{1}=3$

b = 1 refer to the table that shows y = 1 when x = 0

Now input m = 3 and b = 1 into the Slope-Intercept formula:

y = 3x + 1

8 0

2 years ago