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3 years ago

MIDDLE SCHOOL MATH Please help, this is the last question and it's due at 11:45

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

8 0

Answer:

No.

Step-by-step explanation:

He is working 6 hours and making 5.50 per hour. 5.50x6 will give you 33, which is not enough for the helmet

alekssr [168]3 years ago

5 0

Answer: No

Step-by-step explanation:

$5.50*6=$33

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What is 250/12 plus 100/21 add all that up to get your answer

Dafna1 [17]

Answer:

1075/42

Step-by-step explanation:

$\dfrac{250}{12}+\dfrac{100}{21}=\dfrac{250(21)+(12)100}{(12)(21)}=\dfrac{6450}{252}\\\\=\dfrac{(6)(1075)}{(6)(42)}=\boxed{\dfrac{1075}{42}}$

8 0

3 years ago

Choose the appropriate pattern and use it to find the product: (p4−q4)(p4+q4).

sp2606 [1]

The expression can be solved by expanding the bracket and multiplying out the terms

$(p^4-q^4)(p^4+q^4)$ $\begin{gathered} =p^4(p^4+q^4)-q^4(p^4+q^4) \\ =p^8+p^4q^4-p^4q^4-q^8 \\ =p^8-q^8 \end{gathered}$

Therefore, the expression can be simplified as;

$p^8-q^8$

Alternatively, using the theorem of difference of two squares, which is

$a^2-b^2=(a-b)(a+b)$

Hence,

$p^8-q^8=(p^4)^2-(q^4)^2$

7 0

1 year ago

Double a number decreased by 25.6 is equal to 90 Find the number

marin [14]

Answer:

Step-by-step explanation:

2x-25,6=90

2x=90+25,6

2x=115,6

x=57,8

5 0

3 years ago

Read 2 more answers

Solve each equation.<br> 6x2 + 1 = 13

ahrayia [7]

40,681.
40,681. 40,681.
40,681.

8 0

3 years ago

What is the x-intercept? Please help

lesya692 [45]

Answer:

x is left to right y is up and down !!

Step-by-step explanation:

x is left to right y is up and down !! x would be (0,-1) and (0,-3)

7 0

4 years ago