Lamar and Mimi are in the same math class. The table shows their scores on 6 math tests.

Mathematics

1 answer:

Oduvanchick [21]3 years ago

4 0

Answer: higher

Step-by-step explanation:

The average is a bit higher than Mimi’s

Mimi has an average of 92.33

Lamar has an average of 95.5

Lamar’s is higher

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9 - 4(2x - 1) = 45 please help

ddd [48]

Answer:

$x=-4$

Step-by-step explanation:

$9-4(2x-1)=45$

First, we expand the equation using the distributive rule:

$x(y-z)=xy-xz$

Hence, $9-4*2x-4*-1=45$

Simplify: $9-8x+4=45$

Add like terms:

$13-8x=45$

Subtract 13 from both sides: $-8x=32$

Divide both sides by -8:

$x=-4$

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3 years ago

Jared has some quarters and dimes that total $5.50. If he has 8 more quarters that dimes, how much dimes does Jared have?

MAXImum [283]

Answer: 10 dimes

Solve using system of equations.
q=number of quarters and d=number of dimes
.25q+.10d=5.50 because the total of dimes and quarters is $5.50
8+d=q because there are 8 more quarters than dimes
substitute 8+d for q into the first equation to get .25(8+d)+.10d=5.50
then simplify
2+.35d=5.50
.35d=3.50
d=10 he has 10 dimes

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4 years ago

What’s the geometric mean between 7 and 28 ?

Yuki888 [10]

I believe the mean its 14!

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3 years ago

What is the X and Y axis of a line graph

Law Incorporation [45]

The x axis is horzontial

the y axis is vertical

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3 years ago