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Gre4nikov [31]
3 years ago
10

PLEASE HEL[PPPPP!!!!!!!

Mathematics
2 answers:
ikadub [295]3 years ago
6 0

Answer:

<em>Jim weighs 138 lb. Mark weighs 104 lb.</em>

Step-by-step explanation:

Let Mark's weight = M

The Jim's weight = M + 34

The combined weight is M + M + 34

The combined weight is 242 b, so

M + M + 34 = 242

2M + 34 = 242

2M = 208

M = 104

Mark weighs 104 lb.

M + 34 = 104 + 34 = 138

Jim weighs 138 lb.

Zina [86]3 years ago
4 0
Jim weighs 155pounds and Mark weighs 87 pounds. Don't listen to me I am wrong I believe. I just don't know how to delete the answer.
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What are the possible values of x if (4c-5)^2= 49?
kykrilka [37]

Answer:

c = 3                              c = -1/2

Step-by-step explanation:

(4c-5)^2= 49

Take the square root of each side

sqrt((4c-5)^2)= ±qrt(49)

4c-5 = ±7

Separate into two equations

4c-5 = 7           4c-5 = -7

Add 5 to each side

4c-5+5 = 7+5          4c-5+5 =-7+5

4c =12                         4c = -2

Divide by 4

4c/4 = 12/4                     4c/4 = -2/4

c = 3                              c = -1/2

7 0
2 years ago
Read 2 more answers
Spends at most 30, buys boxes of crayons that cost 2 per box, also buys a poster for 5. Wants to know how many boxes of crayons
My name is Ann [436]

Answer:

for 15 crayons box she can spend

Step-by-step explanation:

The computation of the number of crayons for which she can spend is shown below:

Given that

She can spend $30

And, the cost is 2 per box

So, for the number of crayons for which she can spend is

= $30 ÷ 2

= 15 crayons box

Hence, for 15 crayons box she can spend

The same would be relevant

4 0
3 years ago
Explain why please i need help for my math class
Sidana [21]

Answer:

\frac{1}{81}

Step-by-step explanation:

\frac{1}{3} × \frac{1}{3} × \frac{1}{3} × \frac{1}{3}

1 × 1 × 1 × 1 = 1

3 × 3 × 3 × 3 = 81

\frac{1}{81}

7 0
2 years ago
X + 4y = 18 3x − y = 2 given x + 4y = 18 12x − 4y = 8 x + 4y + 8 = 18 + 8 x + 4y + (12x − 4y) = 18 + 8 13x = 26 justification st
goldenfox [79]
Spacing needs to be more clear instead of having a giant paragraph. you do not write math in giant paragraphs do you
5 0
3 years ago
4=x^2 -5x-1 <br> HOW MANY X INTERCEPTS ARE THERE ?
diamong [38]

Answer:

2 x values

x  =  5.85410196 …  

x = − 0.85410196 …

Step-by-step explanation:

6 0
3 years ago
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