Can someone answer this question please?

Mathematics

1 answer:

Setler [38]3 years ago

8 0

Answer:

28 blue marbles

Step-by-step explanation:

since the ratio s 7/4, we have to make 49/x=7/4. 7 times 7 is 49, so 4 times 7 must be x. 4 times 7 is 28, so there are 28.

You might be interested in

One meter of electrical cord costs 3 dollars. How much should one pay for 4 meters?? Please help me out here.

Snowcat [4.5K]

Answer:

$12

Step-by-step explanation:

The best way to do this is with a simple ratio. If you pay $3 for one meter, then for 4 meters, you’d pay $12. You BOUGHT 4 times more cord, which means you’d PAY 4 times more. Thus, 3 x 4 = 12!

Or with ratios:

1 meter : $3

multiplying both sides by 4

4 meters : $12

3 0

2 years ago

O 12 units<br> O 15 units<br> O 20 units<br> O 25 units

nadezda [96]

Answer:

12 units

Step-by-step explanation:

Because the two triangles are similar:

$\dfrac{x}{9}=\dfrac{16}{x} \\\\\\\dfrac{x^2}{9}=16 \\\\\\x^2=144 \\\\\\x=12$

Hope this helps!

3 0

2 years ago

Can someone help me please

telo118 [61]

It's a reflection across the x axis, so the y intercept won't change (12)

f (x) = 3x + 12
|
\/
g(x) = -3x + 12

I MAY BE WRONG IM ONLY 80% SURE

8 0

2 years ago

How do you solve this?

mel-nik [20]

Answer:

Horizontal component = 9.6

Step-by-step explanation:

Recall that the horizontal component is given by the cosine projection;

$v_x=|v_0| * cos(\theta)$

which in our case (using the fact that in each degree of angle one has 60 minutes of angle, and therefore 30 minutes of angles is the same as 0.5 degrees) becomes:

$v_x=12.6 * cos(40.5^o)=9.5811$