MATHEMATICS MIDDLE SCHOOL

If a baseball and a bat cost $1.10 together, and the bat costs $1.00 more than the ball, how much does the ball cost?

Answers

Answer 1
Answer: Contrary to the above answer, the ball does not cost $0.10! If the ball were to cost 0.10 then the bat must cost $1.00 which is only $0.90 more than the ball! We can solve this equation correctly using an expression like so:
b = price of the ball
b + 1 = price of the bat
b + (b + 1) = price of the ball + price of the bat
b + b + 1 = 1.10
Therefore reareanging the equation:
2b = 0.10
And therefore:
b = 0.05
So the ball costs $0.05 and the bat costs $1.05 :))

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What is the surface area of the square pyramid represented by the net?Enter your answer in the box.


cm²

Answers

Answer:

175 cm²

Step-by-step explanation:

Square: 7*7= 49 all of the triangles: A=h*b/2 9*7/2=31.5 *4= 126 so add them together 49+126= 175

Answer:

ok first off that's not the right answer the answer is 50

Step-by-step explanation:

when your trying to figure out surface area you add all the numbers that are there

Solve -0.5(–2x+8) – 8 = 8.​

Answers

Answer:

x = 20

Step-by-step explanation:

Firstly, we have to distribute: (-0.5 * -2x) and (-0.5 * 8) -8 = 8

1x - 4 - 8 = 8

Next collect like terms:   1x - 12 = 8

Isolate x to get the value of x: Add 12 to both sides

1x = 20

So x = 20

Answer:x=20

Step-by-step explanation: first you distribute the value outside of the parentheses

-0.5*2x= 1x

-0.5*8=-4

it then becomes

x-4-8=8

combine -4 and -8

x-12=8

add the 12 over

x=20

the area of a parallelogram with a height of 6 meters is 126 square meters what is the base length of the parallelogram

Answers

The formula for finding the area of a parallelogram is base * height.

If we know that the height is 6 meters and the area is 126, we can write the equation 6 * base = 126.
we divide 6 on both sides and get base = 126/6 = 21 meters

Answer:

12

Step-by-step explanation:

Steve's nut world increases the weight of its big almond bag by 3 ounces seven big almond bags now weigh a total of 126 ounces . How many ounces did the old big almond bag weigh

Answers

126/7=18 (so that's 18 ounces per bag) 
now subtract the 3 ounces that were added to each bag:
18-3=15
so the old almond bag weighed 15 ounces 

Select all rational numbers I need help asap​

Answers

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What the disrubitive of property

Answers

the distributiver property allows you to get rid of parenthasees when mulitplying for example
if you had
4 times (x+2) you can't simplify the parenthaseese becuase x and 2 aren't like terms so usses distributive whiich is

a(b+c)=ab+ac
so therefor
4(x+2)=4x+(4)2=4x+8
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