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3 years ago

2(g+5)=-7-4g+g include instructions plz!

1 answer:

4 0

First distribute the 2, then add 7 to that side, so you have 2g+17=-4g+g , subtract 2g and it should be easy to find from there lol

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How are u supposed to find the area without knowing what x is?

aliina [53]

You might want to look up some webstite that explains how to do it. thats how i learned area. I know the answer but i like to draw it out

5 0

4 years ago

Please help. I need it now. Thank you!

exis [7]

I don't know these types of questions sorry

8 0

3 years ago

Simplify the expression (8-√5)(8+√5) 39 59 64+√5 69+16√5

irakobra [83]

Using the identity a^2 - b^2 = (a - b)(a + b):-

this is 8^2 - (sqrt5)^2 = 64 - 5 = 59 Answer

4 0

4 years ago

Andra travels 90 miles at an average speed of 70 mph.

spayn [35]

Answer:

54mph

Step-by-step explanation:

$\textsf {\underline {To find :-}}$

The average speed at 2nd departure.

⠀

$\textsf{ \underline {Given :-}}$

The speed during 90 miles travel = 70mph

The average speed during the entire journey = 63mph

The distance in second departure = 70 miles

⠀

$\textsf {\large{ \underline{ Solution :-}}}$

⠀

The distance travelled in the entire journey

= 90 + 70 = 160 miles.

⠀

Then the time taken in entire journey will be

$\sf \large = \frac{total \: distance}{average \: speed} \\ \\ \sf \large = \frac{160}{63} \\ \\ \sf \large = 2 \frac{37}{63}hours \\ \\ \sf \large = 2 \: hours \: 35 \: minutes$

⠀

Time taken at first departure

$\sf \large = \frac{distance}{speed} \\ \\ \sf \large = \frac{9 \cancel0 }{7 \cancel0} \\ \\ \sf \large = 1 \frac{2}{7} \: hours \\ \\ \sf \large = 1 \: hour \: 17 \: minutes$

⠀

Time taken in second departure

= 2 hours 35 minutes - 1 hour 17 minutes

= 1 hour 18 minutes

⠀

Speed at second departure will be

$= \sf \large \frac{distance}{time} \\ \\ \sf \large = \frac{70}{1 \frac{18}{60} } \\ \\ \sf \large = \frac{70}{1.3} \\ \\ \sf \large = 53.84 \: mph \\ \\ \sf \large = 54 \: mph$

⠀

The average speed at second departure was 54mph.

6 0

2 years ago

Write an expression to show the sum of 2j and 5 .

kogti [31]

Answer:

2j+5 =

Step-by-step explanation:

"Sum" is a keyword for addition. so 2j + 5 would be your answer, I believe.

7 0

3 years ago