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3 years ago

Mark bakes 73 cookies for the bake sale. Ann bakes 242 cookies. How many cookies did they bake altogether?

Mathematics

2 answers:

sveta [45]3 years ago

3 0

Answer: 315 cookies

Step-by-step explanation: 73+242 = 315

frutty [35]3 years ago

3 0

Answer: 315

Step-by-step explanation: 73+242=315

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7 times (3xsquared - 2x + 7)

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3 years ago

Find the equation of a line that is parallel to the line y=-3x-1 and crosses the y-axis at (0,-8).

Colt1911 [192]

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3 years ago

The shortest side of an isosceles triangle is 26 cm less than twice as long as the other sides. The perimeter of the triangle is

olya-2409 [2.1K]

Answer:

22cm,24cm,24cm

Step-by-step explanation:

Let us call one of the other sides x

the shortest side = 2x-26

in an isosceles, 2 sides are equal (x in this case)

so we now have sides of x,x and 2x-26

form an eqution from this.

4x-26=70

4x=96

x=24

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thus, the shortest side is 22cm and the other sides are both 24cm

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3 years ago

Read 2 more answers

"a u.S. 1-cent coin (a penny) has a diameter of 19 mm and a thickness of 1.5 mm". Assume the coin is made of pure copper, whose

choli [55]

the question is Calculate the value of the copper in the coin

Step 1

Find the volume of the coin

we know that

the volume of a cylinder is equal to

$V=\pi r^{2}h$

where

r is the radius of the coin

h is the thickness of the coin

in this problem we have

Diameter=19 mm=1.9 cm

r=D/2------> r=1.9/2=0.95 cm

h=1.5 mm=0.15 cm

substitute the values in the formula

$V=\pi*0.95^{2}*0.15=0.425\ cm^{3}$

Step 2

Find the mass of copper in the coin

we know that

the density is equal to

$Density=mass/volume$

Solve for the mass

$mass=Density*volume$

we have

$Density=8.9\ gr/cm^{3}\\Volume=0.425\ cm^{3}$

substitute in the formula

$mass=8.9*0.425=3.785\ gr$

Step 3

Find the cost

we know that

the market price of the copper is $2.15 per pound

1 pound=453.592 grams

convert gram to pounds

3.785 gr=3.785/453.592=0.0083 pounds

0.0083*$2.15=$0.018=$0.02

therefore

the answer is

$0.02

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4 years ago