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3 years ago

PLEASE HELP ASAP TAKING TEST

Mathematics

2 answers:

diamong [38]3 years ago

8 0

The first choice !!!

-BARSIC- [3]3 years ago

7 0

Answer:

the first one!!!!! i got this right on my test

Step-by-step explanation:

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Maggie's brother is 3 years younger than four times her age. The sum of their ages is 62. How old is Maggie? Maggie is years old

Nadusha1986 [10]

Answer:

Maggie is 13 years old.

Step-by-step explanation:

1M + 1B = 62

rearrange to get:

1B = 62 - 1M

4M - 3 = 1B

substitute B with 62 - 1M so there is only one variable. this gives:

4M - 3 = 62 - 1M

Get all the variables on one side:

4M + 1M - 3 = 62

Get all non variables on the other side:

4M + 1M = 62 + 3

simplify:

5M = 65

Divide both sides by 5 to get the M by itself:

M = 13.

BONUS:

M + B = 62

B = 49

So her brother is 49 years old.

Maggie is 13 years old.

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3 years ago

Factor completely 5b^2-11b+6

vekshin1

Answer:

(b - 1) (5b - 6)

Step-by-step explanation:

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3 years ago

What is the value of x in the equation below?

belka [17]

$remember$
$ln(a^b)=bln(a)$
$ln(e)=1$
$so$
$ln(e^x)=xln(e)=x$

$1+2e^{x+1}=9$
$minus \space\ 1 \space\ both \space\ sides$
$2e^{x+1}=8$
$divide \space\ both \space\ sides \space\ by \space\ 2$
$e^{x+1}=4$
$take \space\ ln \space\ of \space\ both \space\ sides$
$ln(e^{x+1})=ln(4)$
$(x+1)ln(e)=ln(4)$
$x+1=ln(4)$
$minus \space\ 1 \space\ from \space\ both \space\ sides$
$x=ln(4)-1$
$answer \space\ is \space\ C=ln(4)-1$

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3 years ago

Read 2 more answers

When using blocking to deal with extraneous factors in an experiment, the

Elena L [17]

Answer:

<em>False</em>

Step-by-step explanation:

took the test

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3 years ago

What is 0.7 subtract 3

Irina18 [472]

Answer:

-2.3

Step-by-step explanation:

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2 years ago