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2 years ago

I need help with my math I'm doing solving equations using addition and subtraction

Mathematics

2 answers:

Katen [24]2 years ago

8 0

It would be 4 because, on the right, it has 3 and 4. That is 7 and if you look at the scale it's balanced which means it would be the same on that side but it already has 3 so 4. So hold up your fingers and take 4 fingers up and add 3 fingers to that 4. How many is that? Count them all up and you'll get 7!

Flura [38]2 years ago

3 0

N+3=7. To find n, you need to have it by itself, so you can do that by subtracting 3 on both sides, so it would look like: n+3-3=7-3. Then you have n=4.

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7(4g) + 3(5h) + 2 (-3g); g=1/2 , h= 1/3

Digiron [165]

7(4(1/2))+3(5(1/3))+2(-3(1/2))=
7(4/2)+3(5/3)+2(-3/2)=
7(2)+15/3+-6/2=
14+5-3=
19-3=
16

4 0

3 years ago

AABC - ADEF <br><br> Find the value of x

kobusy [5.1K]

Answer:

$\boxed{x = 4}$

Step-by-step explanation:

If ΔABC ~ ΔDEF

Then their sides must be proportional such that:

=> $\frac{x}{3} = \frac{8}{6}$

Cross Multiplying

=> x * 6 = 8*3

=> 6x = 24

Dividing both sides by 6

=> x = 4

4 0

3 years ago

Read 2 more answers

What is the number when you add it's gives you-6 when you subtract it gives you 1

3241004551 [841]

Answer: 5 is the answer to this
explation:

3 0

2 years ago

Which of the following measurements could be the side lengths of a right triangle?

nataly862011 [7]

For this case we have that every rectangle traingule complies with the Pythagorean theorem:

$c = \sqrt {a ^ 2 + b ^ 2}$

Where:

c: It is the hypotenuse

b: It's the base

a: It's the height

It is noted that if we replace:

$a = 66\\b = 88\\c = \sqrt {66 ^ 2 + 88 ^ 2}\\c = 110$

So, we have $c = 110 \ in ^ 2$

If we evaluate the other options we will obtain wrong results.

Thus, a rectangle triangle can have measurements of:

66 in, 88 in and 110 in respectively

Answer:

Option b

8 0

3 years ago

A museum groundskeeper is creating a semicircular statuary garden with a diameter of 29 feet. There will be a fence around the g

Jlenok [28]

Answer:

The fence will cost $330.09

Step-by-step explanation:

First we have to calculate the perimeter of the semicircle for that we use the following formula:

d = diameter = 29ft

s = perimeter of semicircle

π = 3.14

s = d * 1/2 * π

we replace the values that we know

s = 29ft * 1/2 * 3.14

s = 45.53ft

Now we multiply the number of feet by the price of 1 foot of fence

45.53 * $7.25 = 330.0925

Rounding to the nearest hundredth

$330.0925 = $330.09

8 0

3 years ago