All categories

3 years ago

I need HELP!! With 31, 33, 35 please explain

Mathematics

2 answers:

jenyasd209 [6]3 years ago

6 0

Answer:

31. 3

33. 70

35. - 25%

Step-by-step explanation:

31. 50 x .06 = 3

33. make a ratio

28 over x equal to 40 over 100

28 x 100 = 2800 divided by 40 = 70

35. $5 drop in price. $5 is 25% of $20

negative because it'a a decrease

rusak2 [61]3 years ago

3 0

For 31 you need 6% OF 50 meaning you need to multiply. 50*0.06=3. The answer for 31 is 3.

To find 33 you need to divide 1 by 0.4 to find how much you need to multiply 28 by. 1/0.4= 2.5 then you need to do 2.5*28 which would equal 70. The answer for 33 is 70.

To find 35 you need to notice that it DECREASES in meaning the bigger number (20) would be the denominator of the fraction and 15 would be the numerator. Therefore the fraction would b 15/20 or 75% of 20 would equal out to 15.

You might be interested in

I have a math problem: I also attached the possible values I was given. Please Help!

vekshin1

Answer:

I solved it and my answer is - 1.2

8 0

2 years ago

⚠️⚠️⚠️ I WILL MARK BRAINLIEST ⚠️⚠️⚠️

Ray Of Light [21]

Answer:

I can only help with 5 and 6 which both are A.

Explanation:

that's because Cosine is adjacent to the angle (the angle being 30 degrees and the side next to it is 43mm) divided by the hypotenuse (longest side of a right triangle. The 50 mm). A way you can remember the sin, cosine and tangent is SOH CAH TOA. Sine=opposite over hypotenuse, Cosine = adjacent over hypotenuse, Tangent = opposite over adjacent. For the next one, it is the same principal. X is adjacent to 22 degrees and the other number is the hypotenuse so it has to be Cosine.

7 0

2 years ago

point Z in nXYZ has coordinates (5,-4). nXYZ was dilated by a scale factor of 0.8 name the coordinates of the image of point V.

cluponka [151]

There is no information given about point V, so any answer will do for the question asked.

If we assume the intent is to ask about the image of point Z, then its coordinates will be 0.8 times those of point Z.
Z' = 0.8×(5, -4)
Z' = (0.8×5, 0.8×(-4)) = (4, -3.2)

The appropriate choice seems to be
C (4, -3.2)

4 0

3 years ago

Find the size of angle XYZ. Give your answer to 1 decimal place. Z 13 cm x Y 4 cm

Rzqust [24]

Answer:

solution,

 $tan \: y \: = \frac{13}{4} \\ y = {tan}^{ - 1} ( \frac{13}{4} ) \\ y = 72.9$ 

hope this helps ....

Good luck on your assignment...

7 0

3 years ago

Read 2 more answers

On three science tests, Olivia has received scores of 89%, 98%, and 96%. What is the lowest score Olivia can get on her fourth a

Nikolay [14]

Answer:

97%

Step-by-step explanation:

89%+98%+96%+?=95×4

283+?=380

?=380-283

?=97%

4 0

2 years ago