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3 years ago

The effect of the time of day a science class is taught on test scores is being

Mathematics

2 answers:

Simora [160]3 years ago

5 0

If you have answer choices that would be helpful.

If not I would assume that it means that giving every student the same test is an example of a controlled variable.

s344n2d4d5 [400]3 years ago

4 0

Answer:

Amount of homework given

Step-by-step explanation:

Correct!

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A decimal and a fraction between -4 and -3

LUCKY_DIMON [66]

Answer: - 3.5, -7/3

Step-by-step explanation:

6 0

3 years ago

Please help on this one question

Nonamiya [84]

Answer:

9ab+3a

Step-by-step explanation:

2a*3b=6ab

2a*1=2a

a*3b=3ab

a*1=a

adding everything together=6ab+2a+3ab+a=9ab+3a

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3 years ago

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HeLP ASAP WiLl GiVe bRanIiEst!!!!!

riadik2000 [5.3K]

Step-by-step explanation:

mean = 5+7+7+x /4 = 7

19+x / 4 = 7

19+x = 28

x = 9

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2 years ago

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Kalani bought 2.5 pounds oranges for $1.58 per pound.how much did kalani spend on oranges ?

Tcecarenko [31]

To find the answer for this simply multiply 2.5 by 1.58

2.5 x 1.58= 3.95

So Kalani spent a total of $3.95 on oranges!

6 0

3 years ago

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A number plus itself, plus twice itself, plus 4 times itself is equal to -104

NARA [144]

The scenario will will be represented by: $x+x+2x+4x=-104$

The number will be -13

Step-by-step explanation:

We have to convert the given situation into the mathematical form

Let x be the number

Then

"a number plus itself"

x+x

"plus twice itself"

x+x+2x

"plus 4 times itself"

x+x+2x+4x

"is equal to -104"

$x+x+2x+4x=-104$

This can also be written as:

$x+x+2x+4x=-104\\8x=-104\\Dividing\ both\ sides\ by\ 8\\\frac{8x}{8}=\frac{-104}{8}\\x=-13$

Keywords: Linear Equation

Learn more about linear equation at:

#LearnwithBrainly

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3 years ago