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ohaa [14]
3 years ago
14

I need to know how to do it aswell

Mathematics
2 answers:
4vir4ik [10]3 years ago
6 0

Answer:

x= 3

Step-by-step explanation:

x on triangle 1 is 5 times less than 15

x on triangle 2 is 3 times bigger than 10

Hope this helps!

Pavlova-9 [17]3 years ago
3 0

Answer:

x = 5

Step-by-step explanation:

The small triangle has been dilated by 2 making it twice as big as before.

The side that measures 10 would be dilated by 0.5 to find x which is half a big.

10 x 0.5 = 5

Now check your work. On one side it asks 6x. So, 6 x 5 = 30. Since 30 is twice as much as 15. The rule applies that x = 5.

5 x 2 = 10

6 x 5 = 30

15 x 2 = 30

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Amie $26 to spend on school supplies . After buying10 pens she had $14.30 left. How much would each pen cost
uranmaximum [27]
$1.17 each. Hope this helps.
6 0
3 years ago
What is the equation of a circle centered at the origin with radius 20?
Colt1911 [192]
We know that
the equation of a circle is
(x-h)²+(y-k)²=r²
where 
(h,k)-----> is the center
r--------> is the radius

is the center is the point (0,0) and radius  r=20
then
(h,k) is (0,0)

(x-0)²+(y-0)²=20²---------> (x)²+(y)²=400


the answer is
the option D.)  x2 + y2 = 400
3 0
3 years ago
Write an equation of the line passing through the point(2,10)
Arlecino [84]
Rearrange 2x+y=17 to slope intercept form: y=-2x+17
slope of that equation is -2 and perpendicular slope is 1/2
use point slope form and put the point(2,10) and slope in there to get y-10= 1/2(x-2)
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This should be correct
7 0
2 years ago
Tristan had 1/3 lb of grapes at home he went to the store and bought 3/8 lb of grapes what fraction of a pound of grapes does Tr
Black_prince [1.1K]

Answer:

Tristan has a 17/24 lb fraction of a pound of grapes now.

Step-by-step explanation:

Given

  • The number of grapes Tristan had at home = 1/3 lb
  • The number of grapes Tristan had at the store = 3/8 lb

To determine

What fraction of a pound of grapes does Tristan have now?

In order to get the total fraction of a pound of grapes, all we need is to add the number of grapes Tristan had at home and the number of grapes Tristan had at the store.

i.e.

Current number grapes = 1/3 + 3/8

Least Common Multiple of 3, 8: 24

Adjust fractions based on L.C.M

                                          = 8/24 + 9/24

Apply the fraction rule:   \frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}

                                           = (8 + 9) / 24

                                            = 17/24 lb

Therefore, Tristan has a 17/24 lb fraction of a pound of grapes now.

3 0
3 years ago
If f(x) = x² + 7, what is the value of f(4)? Enter the answer in the box. PLEASE HELP .
bazaltina [42]

Answer:

23

Step-by-step explanation:

With f(4), we plug 4 into the function.

f(4) = 4² + 7

f(4) = 16 + 7

f(4) = 23

7 0
4 years ago
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