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3 years ago

11

two welders work total of 60 hours on a project. One welder made $32/h, while the other made $41/h. If the gross earnings was 21

72 for the job, how many hours did each welder work?

1 answer:

amid [387]3 years ago

6 0

Um...idk I'm in 5th grade

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Arlecino [84]

The answer is 30. 5/10 is equal to 15/30

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3 years ago

What's next in this series: 324, 256, 196, 144?

nydimaria [60]

Next term will be 100

as series is 18²,16²,14²,12² so next will be 10²

hope it helps

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2 years ago

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7B9x%7D%5E%7B2%7D%20-%20%7B%28x%7D%5E%7B2%7D%20-%204%29%20%7B%7D%5E%7B2%7D%20

Alenkinab [10]

Answer:

${ x^2+3x-4}$

Step-by-step explanation:

Factor top and bottom.

The numerator is a difference of two squares, and the denominator is a quadratic.

$\frac{ {9x}^{2} - {(x}^{2} - 4)^{2} }{4 + 3x - {x}^{2} }$

= $\frac{ (3x+x^2-4)(3x-x^2+4) }{(1+x)(4-x)}$

= $\frac{ (x-1)(x+4) (1+x)(4-x) }{(1+x)(4-x)}$

If x does not equal -1 and does not equal 4, we can cancel the common factors in italics to give

= ${ (x-1)(x+4)}$

= ${ x^2+3x-4}$

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3 years ago

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Maya spend 40% of her savings to pay for a bicycle that cost her $85. How much money was in Maya's savings to begin with?

notka56 [123]

Step-by-step explanation:

letπ be the percentage of her savings

=40+85

=125

=125+π=100

=π=100-125

=π=75

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% (a,b)
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&({{ -4}}\quad ,&{{0}})
\end{array}\qquad 
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d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}$

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3 years ago