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3 years ago

Help Me Please I need to do this for school

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

8 0

Answer:

3 hours

I hope its right

hodyreva [135]3 years ago

4 0

Answer:

He worked for 3 hours.

Step-by-step explanation:

you can solve this by muiltipling the amount of hours by the kilograms done in an hour.

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What’s the answer ??????

frozen [14]

It’s 8cm ……..the answer is 8cm you can tell because on the other side it says 8 and pr is the same size as the other

5 0

3 years ago

Solve the system of equations using substitution<br> 4x + 2y = 16<br> =−12+5

mario62 [17]

Answer:

$x=\frac{70}{11},\:y=\frac{20}{11}$

Step-by-step explanation:

$\begin{bmatrix}4x+2y=16y\\ y=-\frac{1}{2}x+5\end{bmatrix}$

$\mathrm{Substitute\:}y=-\frac{1}{2}x+5$

$\begin{bmatrix}4x+2\left(-\frac{1}{2}x+5\right)=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}$

$Simplify$

$\begin{bmatrix}3x+10=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}$

Isolate x for 3x+10=16(-1/2x+5): $x=\frac{70}{11}$

$\mathrm{For\:}y=-\frac{1}{2}x+5$

$\mathrm{Substitute\:}x=\frac{70}{11}$

$y=-\frac{1}{2}\cdot \frac{70}{11}+5$

$-\frac{1}{2}*\frac{70}{11}+5=\frac{20}{11}$

$y=\frac{20}{11}$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=\frac{70}{11},\:y=\frac{20}{11}$

3 0

3 years ago

PLZZ HELP MEEEEEEEEEEE

Luba_88 [7]

Answer:

That's not math.....that's what appears to be Chemistry.

Step-by-step explanation:

I don't see a question....

8 0

3 years ago

Read 2 more answers

Put to least to greatest

Veseljchak [2.6K]

Answer: 3 bottles of sunscreen- $22.5,

2 beach towels- $30

and 3 floats- $30.75

Step-by-step explanation:

8 0

4 years ago

Slope: 0 and y-intercept:0

Marat540 [252]

Answer:

y=0

Step-by-step explanation:

A slope of 0 is a horizontal line.

4 0

3 years ago