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3 years ago

How to factor the tens from 30x40

Mathematics

2 answers:

Mariana [72]3 years ago

6 0

10(3+4)= 30+40

I factored the 10 and put it on the outside

Margaret [11]3 years ago

5 0

http://www.showme.com/sh/?h=Qi8gLxo

This should help :)

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Find both X's Please show your work!

Hoochie [10]

Right angle=90°.
(X-20) + X = 90.
Then solve for X.
X=55

4 0

2 years ago

2.3+0.02(x+20)-4.8=-9<br><br> Solve for x

Naya [18.7K]

Answer:

$x=-345$

Step-by-step explanation:

$2.3+0.02\left(x+20\right)-4.8=-9$

$\mathrm{Multiply\:both\:sides\:by\:}100$

$2.3\cdot \:100+0.02\left(x+20\right)\cdot \:100-4.8\cdot \:100=-9\cdot \:100$

$230+2\left(x+20\right)-480=-900$

$\mathrm{Subtract\:}230-480\mathrm{\:from\:both\:sides}$

$230+2\left(x+20\right)-480-\left(230-480\right)=-900-\left(230-480\right)$

$2\left(x+20\right)=-650$

$\mathrm{Divide\:both\:sides\:by\:}2$

$\frac{2\left(x+20\right)}{2}=\frac{-650}{2}$

$x+20=-325$

$\mathrm{Subtract\:}20\mathrm{\:from\:both\:sides}$

$x+20-20=-325-20$

$\bold{x=-345}$

5 0

2 years ago

Please help me with this math problem!! Will give brainliest!! :)

aleksandrvk [35]

Answer:

-3

Step-by-step explanation:

(fg)(-1) is just f(-1) * g(-1). From the graph on the left, we can see that f(-1) is 1, since (-1,1) is on the graph. From the graph on the tight, we can see that g(-1) is -3, since (-1,-3) is on the graph. Now, we just have to multiply 1 and -3: 1*-3 = -3

8 0

1 year ago

Need help please <br>n ÷ 8 = 13

coldgirl [10]

Answer:

n= 104

Step-by-step explanation:

hope dis helps <3 have a nice day .

3 0

2 years ago

Read 2 more answers

Suppose two bicyclists start at the same location.

DerKrebs [107]

Answer:

Step-by-step explanation:

See attachment.

If both cyclists travel for the same time and speed, they will have travelled the same distance. Since one is headed north and the other east, we can see that the distance between them in one hour is the hypotenuse of a right triangle. Each leg has distance x. We can say x^2 + x^2 = (3 $\sqrt{2}$ )^2

2x^2 =1 8

x^2 = 9

x = 3

They both rode 3 miles.

5 0

2 years ago