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Neporo4naja [7]
3 years ago
8

What is the answer to 13a - 8a + 9b - 4b

Mathematics
1 answer:
ioda3 years ago
3 0

Answer:

<h2>5a + 5b </h2>

Step-by-step explanation:

13a-8a+9b-4b\\\mathrm{Add\:similar\:elements:}\:13a-8a=5a\\=5a+9b-4b\\\mathrm{Add\:similar\:elements:}\:9b-4b=5b\\=5a+5b

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What is 0.25x20 show and explain your answer
igomit [66]

Answer:

5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Tiffany babysits to earn extra money. She charges a fee of $15 per hour for one child, and then an added $30 overall for each ad
Hoochie [10]

Answer: Minimum for $150: 2 Hours

Step-by-step explanation: First, Tiffany charges $30 per additional child. If she babysits for 4 children, you do 30 x 4, which is equal to 120. That would be the cost for the children. Now, if she charges $15 PER HOUR, then you just add up $15 + $15, which is $30, and you add that $30 to the $120. Which is $150. There you have it. If this is wrong, correct me please!

8 0
3 years ago
An amusement park is open for 15 hours a day, 7 days a week
sertanlavr [38]

Answer:

The domains are;

0 < x < 3 for f(x) = 15

3 ≤ x ≤ 7 for f(x) = 22

7 < x ≤ 15 for f(x) = 30

Step-by-step explanation:

The duration the amusement park is opened, t = 15 hours

The number of days the amusement is opened = 7 days a week

The prices for the admission are;

x < 3 hours = $15

3 ≤ x ≤ 7 hours = $22

x > 7 hours = $30

The functions are;

f(x) = 15 when x < 3; The domain = 0 < x < 3

f(x) = 22 when 3 ≤ x ≤ 7; The domain = 3 ≤ x ≤ 7

f(x) = 30 when x > 7; The domain = 7 < x ≤ 15.

3 0
3 years ago
Find the lenth of a rectangle prism having a volume of 2,83.5 cubic meters, and height of 9 meters
lidiya [134]
Multiply lxwxh=volume
9x18.5xn=2,835 or 283.5
the length is either 1.7 or 17
4 0
4 years ago
PLZ HELP ON THIS QUESTION
Lena [83]
Triangle is equal 180 degrees. Given values, 70 + 35 = 105
Meaning, you find what ‘more’ degrees are needed to get 180
180 - 105 = 75 degrees
70 + 35 + 75 = 180
x = 75
8 0
3 years ago
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