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2 years ago

Solve for x; 7x + 9 = 2(4x + 2) Please show your work, will vote for the brainiest answer.

Mathematics

1 answer:

vagabundo [1.1K]2 years ago

5 0

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What is 0.00001 meters in nanometers

Luden [163]

The answer is 10000 because you need to flip it

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2 years ago

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Sasha baked 21 cookies with 3 scoops of flour. How many scoops of flour does Sasha need in order to bake 28 cookies? Solve using

aniked [119]

4 because 21 is 3x7 and 28 is 4x7

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2 years ago

10. On one night, a group of 9 rats carried away 45 kg of food. What is the reduced ratio of rats to food weight

GenaCL600 [577]

Answer:

Number of rats : Food weight = 1 : 5

Step-by-step explanation:

Number of rats in the group = 9

Weight of food carried away by them = 45 kg

Ratio of the number of rats and food weight = $\frac{\text{Number of rats}}{\text{Weight of food carried by the rats}}$

= $\frac{9}{45}$

= $\frac{1\times 9}{5\times 9}$

= $\frac{1}{5}$

Therefore, Number of rats : Food weight = 1 : 5

4 0

2 years ago

Can someone tell me if i got this right? its all i need

Alexxx [7]

Answer:

No, the answer is 120 plants per square foot

Step-by-step explanation:

What I did was first figure up the area of the triangle. You want to do this because the area will tell you how many square feet are in the garden. In order to find this, you need to use this formula: 1/2 b·h

Plug in the numbers like this: 1/2·15·8

15 is the base of the triangle, while 8 is the height of the triangle. Now solve your equation.

15·8=120

1/2·120=60

Area = 60

Now you know that the area is 60ft². So there are 60 square feet in the whole garden. But, we're not done yet. Jessica wants to put 2 plants in every 1 square foot. So now, we need to multiply 60 by 2 in order to get 2 plants in every 1 square foot.

60·2=120

Jessica can put 120 plants in the garden if she is wanting 2 plants per square foot.

I hope this makes sense and is easy to understand. Please let me know if you need any more help or clarification. I'm always happy to help! Have a great day and good luck!!

4 0

2 years ago

Write the equation of a line that passes through the point (-1,5) and has a slope of -7. Your answer should be given in the form

Marysya12 [62]

Plug the values in the equation and find b
(x, y) and m = slope
$5 = ( - 7)( - 1) + b \\ b = - 2 \\ y = - 7x - 2$

4 0

2 years ago