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MrRa [10]
3 years ago
10

Can someone help me with these 4 questions

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
4 0
15. 145. 360-90-95-30
16. 90

The other picture number 16 again I already did that one.
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What’s the answer I don’t understand
Scorpion4ik [409]
Your answer is D. All of these statements are true.
5 0
3 years ago
Ninas dog eats 1/6 lb of dog food twice a day. If Nina buys a 20 lb bag of dog food, how many days will the bag feed her dog?
My name is Ann [436]

Answer:

<h2>60 days</h2>

Step-by-step explanation:

<h3>Step 1: First, since it is 1/6 pound twice a day, multiply by 2</h3>

1/6 x 2 = 1/3

<h3>Step 2: Divide 20 by 3 to get days that bag will feed the dog</h3>

20 ÷ 1/3 = 60

The bag will feed Nina's dog for 60 days.

I'm always happy to help :)

7 0
3 years ago
Write and solve an inequality that means a number plus six is less than or equal to twenty-four.​
hichkok12 [17]

Answer:

Inequality:  x + 6 ≤ 24

Solution:  x ≤ 18

Step-by-step explanation:

<u>Plus</u>:  "+" →  to <u>add</u> something to something else

<u>Less than or equal to</u>:  "≤" → the expression on the left side of the inequality sign is <u>smaller</u> than the expression on the right side of the sign.

Let x be the unknown number.

A number plus 6 is less than or equal to twenty-four:

x + 6 ≤ 24

To solve the found inequality, subtract 6 from both sides:

⇒ x + 6 - 6 ≤ 24 - 6

⇒ x ≤ 18

Therefore, the solution to the inequality is x ≤ 18.  The unknown number x can be <u>any real number equal to or less than 18</u>.

7 0
2 years ago
Read 2 more answers
Serena's father tipped a taxi driver $5 for a $25 ride. What was the percent of the tip that he paid?
patriot [66]
To find the percent, we do 5/25. That gives the decimal 0.2, to change that to a percent, we move the decimal point 2 places to the right and add a % sign, giving 20%
5 0
3 years ago
Read 2 more answers
A scientist wants to measure the effect of acid rain on a species of plant. In his laboratory, he creates an artificial environm
Fantom [35]

Answer:

The scientist will measure ratio data

Step-by-step explanation:

In this experiment the scientist will measure different variables such as height of the plants, number of leaves or thickness of the stem among others, to compare the different results in the two environments (the one  that has synthetic acid rainwater and that doesn't), so that he can determine the effect of the acid rain on a species of plants.

All the data that he will collect will be numbers for example in the day number 1 he measures the height of both plants and he gets that the plant that is in the environment with synthetic acid rainwater measures  1 cm while the one that is in the non-acidic synthetic rainwater measures 2 cm.

As the answers are numbers you can descard the nominal and the ordinal types of measures, and because the diference between the number matters (you know that 2 is bigger than 1) and also the zero means no growing so it determines the value scale, you can descard the interval type of measure, leaving the ratio measure which is a quantitative (the answer has numbers) type of measure in which you can define the order, the exact value between units and you can define an absolute zero.

5 0
3 years ago
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