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lyudmila [28]
3 years ago
9

PLS HELP!!!!! ASAP 7TH GRADE MATH

Mathematics
2 answers:
stira [4]3 years ago
7 0
HUH?!!! Is that 7th grade math I feel lost Rn
mixas84 [53]3 years ago
6 0

Answer:

B.  128 in squared

Step-by-step explanation:

3.9 rounds to 4

4.1 rounds to 4

8.2 rounds to 8

4 times 4 = 16

16 times 8 = 128

I hope this helps!

Please mark as brainliest if I'm correct!!

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Help i dunno the answer to it :
Novay_Z [31]

Answer:

5 miles per hour

Step-by-step explanation:

Let the speed of Kelly is v_1 miles per hour and speed of Raul is v₂ miles per hour.

Since, speed = \frac{\text{Distance}}{\text{Time}}

Kelly took 135 minutes to cover 90 miles from New York to Philadelphia.

∵ 1 minute = \frac{1}{60} hours

∴ 135 minutes = \frac{135}{60} = \frac{9}{4} hours

v₁ = \frac{90}{\frac{9}{4}}

   = 90\times \frac{4}{9}

   = 40 miles per hour

Raul took 153 minutes to cover the same distance as Kelly,

∵ 1 minute = \frac{1}{60} hours

∴ 153 minutes = \frac{153}{60} = \frac{51}{20} hours

v₂ = \frac{90}{\frac{51}{20}}

    =90\times \frac{20}{51}                        

    = 35.29

    ≈ 35.3 miles per hours

v₁ - v₂ = 40 - 35.3

         = 4.7

         ≈ 5.0 miles per hours

Therefore, Kelly is 5 miles per hours faster than Raul.     

5 0
3 years ago
Read 2 more answers
Please answer this fast
Rufina [12.5K]
5/4-1/3 hope this helps
5 0
3 years ago
Factorise e2 + 4e<br><br> pls help me thanks xoxox
Ira Lisetskai [31]

Answer:

e =0 or e= -4

Step-by-step explanation:

First we'll equate the given equation with zero then it'll be proper answer and after that it follows like this

By taking e has common

e(e + 4) = 0 \\

Now,

From this we compare both equation separately and we get

e=0 and e= -4

Note:- If you don't wanna equate the equation with 0 then your answer will be

e(e + 4)

<em>Hope</em><em> </em><em>it</em><em> </em><em>help</em><em>s</em><em> </em><em>you</em><em> </em><em>.</em><em>.</em><em>.</em><em>☺</em>

4 0
3 years ago
Read 2 more answers
Mrs. Baker found 25 shells on the beach. She brought 2/5 of the shells to her
Basile [38]

Answer:

A. 10 B. 15

Step-by-step explanation:

A. 25/1 * 2/5= 50/5

reduced it is 10

B. 25-10=15

8 0
3 years ago
Read 2 more answers
How do I find X the value of x ​
Y_Kistochka [10]

Answer:

X = 2

Explaination:

To find x, we can solve the rational equation by combining expressions, and isolating the variable x.

6/x=9/3

So, Y is 3 when X is 9.

so, it should go like this:

9/3, 6/2, 3/1

that's how you find it.

4 0
3 years ago
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