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insens350 [35]
3 years ago
13

A student is raising money for cancer research. A local business agrees to donate an additional 25% of what the student raises,

while a local politician also agrees to donate an additional 5% of what the student raises. If the student raises $450.00, what is the total donation? ​
Mathematics
1 answer:
Artemon [7]3 years ago
6 0

Answer:

$585

Step-by-step explanation:

Find 25%  of $450:

$450 × 0.25 = $112.5 ⇒ this is how much money the business is donating.

Find 5% of $450:

$450 × 0.05 = $22.5 ⇒this is how much money the politician is donating.

Add those two amounts to the amount the student raised:

$450+$22.5+$112.5= $585

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Calculate X: 2x + 7 is similar to 9x - 35.​
tensa zangetsu [6.8K]

Answer:

x=6

Step-by-step explanation:

2x+7=9x-35

-2x     -2x

(two cancels out on left side and 9x becomes 7x)

7=7x-35

+35     +35

(35 cancels on right side and is added to left)

42=7x

/7     /7 (divide both sides by 7)

x=6

5 0
4 years ago
Angle Sum Theorem - What does Y equal?
masha68 [24]

Answer:

90° = y

Step-by-step explanation:

This is a 30°-60°-90° triangle, so automatically, 30° = x, and 90° = y.

I am joyous to assist you anytime.

7 0
3 years ago
Which of the equations are true identities? a. (3x-2y)(2y-3x)=9x^2-4y^2 b. (2k+5r)(2k-5r)=4k^2-25r^2
krok68 [10]

Answer:

b.(2k+5r)(2k-5r)

Step-by-step explanation:

We have to find the equation which are true identity.

a.(3-2y)(2y-3x)

(3x-2y)(2y-3x)=3x(2y-3x)-2y(2y-3x)

=6xy-9x^2-4y^2+6xy

(3-2y)(2y-3x)\neq 9x^2-4y^2

b.(2k+5r)(2k-5r)

(2k)^2-(5r)^2

Using identity

(a+b)(a-b)=a^2-b^2

4k^2-25r^2

It is true.

Hence, option b is true.

7 0
3 years ago
The different kinds of beads Jen is using to make purses come in packages of 4 and 12. What is the least number of each kind of
Andre45 [30]

Answer:

You should buy 3 packages of beads that come in packages of 4 and 1 package of beads that come in packages of 12 to have an equal number of each of the different kinds of beads.

Step-by-step explanation:

Since the different kinds of beads Jen is using to make purses come in packages of 4 and 12, to determine what is the least number of each kind of bead Jen can buy to have an equal number of each of the different kinds of beads the following calculation must be performed:

12/4 = 3

4 x 3 = 12

Thus, you should buy 3 packages of beads that come in packages of 4 and 1 package of beads that come in packages of 12 to have an equal number of each of the different kinds of beads.

5 0
3 years ago
In 2010 the continent of South America had a population of 395,280,204. Which of the following is the closest estimate of this n
Elodia [21]

Answer:

4 x 10⁸

Step-by-step explanation:

Well 4 x 10⁸ is 400, 000, 000 which is the closest to 395, 280, 204. For future reference, the number of powers the 10 is raised to is the number of zeros it will have.

3 0
3 years ago
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