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sergiy2304 [10]
3 years ago
11

There are 42 kids on the playground. Then 26 more kids come out to join them. How many kids are now on the playground all togeth

er?
Write a number sentence, draw model, and write a sentence to tell how you solved it.
Mathematics
2 answers:
aev [14]3 years ago
8 0

Answer:

68

Step-by-step explanation:

ch4aika [34]3 years ago
8 0

Answer:

68

Step-by-step explanation:

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Solve for m < L
s2008m [1.1K]

The cosine is the ratio of hypotenuse and base. Then the measure of the angle ∠L will be 60°.

<h3>What is trigonometry?</h3>

The connection between the lengths and angles of a triangular shape is the subject of trigonometry.

The right-angle triangle is given below.

The length of the hypotenuse is 16 and the base length is 5.

Then the measure of the angle ∠L will be

cos L = 5 / 10

cos L = 1 / 2

      L = cos⁻¹ (1 / 2)

      L = 60°

More about the trigonometry link is given below.

brainly.com/question/22698523

#SPJ1

8 0
2 years ago
Find the percent decrease. Round to the nearest percent. From 96°F to 71°F​
barxatty [35]

Step-by-step explanation:

100% = 96

1% = 100%/100 = 96/100 = 0.96

the temperature changed by 96 - 71 = 25.

how many % are these 25 ?

we check how often 1% fits into 25.

that is done by division :

25 / 0.96 = 26.04166667 ≈ 26%

7 0
3 years ago
The price of a computer was decreased by 20% to £136. <br> What was the price before the decrease?
Contact [7]

Answer:

£ 170 .

Step by step explanation :

Given that the price of a computer was decreased by 20% to £136. And we need to find the Original price before the decrease. So , let the earlier price be x ,

<u>Decrease in 20 % :- </u>

⇒ Decreased price = 20% of x

⇒ Decreased price = 20/100 × x

⇒ Decreased price = x/5

<u>New price :- </u>

⇒ New price = x - x/5

⇒ New price = 5x - x/5

⇒ New price = 4x/5.

But its given £ 136 , So

⇒ 4x/5 = £ 136

⇒ x = £ 136 * 5/4

⇒ x = £ 170

<h3><u>Hence</u><u> </u><u>the</u><u> Original</u><u> price</u><u> </u><u>was</u><u> </u><u>£</u><u> </u><u>1</u><u>7</u><u>0</u><u> </u><u>.</u></h3>

4 0
3 years ago
The average credit card debt for college seniors is $22,199 with a standard deviation of $5300. What is the probability that a s
noname [10]

Answer:

Step-by-step explanation:

The number of samples is large(greater than or equal to 30). According to the central limit theorem, as the sample size increases, the distribution tends towards normal. The formula is

z = (x - µ)/(σ/√n)

Where

x = sample mean

µ = population mean

σ = population standard deviation

n = number of samples

From the information given,

µ = 22199

σ = 5300

n = 30

the probability that a senior owes a mean of more than $20,200 is expressed as

P(x > 20200)

Where x is a random variable representing the average credit card debt for college seniors.

For n = 30,

z = (20200 - 22199)/(5300/√30) =

- 2.07

Looking at the normal distribution table, the probability corresponding to the z score is 0.0197

P(x > 20200) = 0.0197

3 0
3 years ago
Which system of linear equations appears to have a solution of (-1,4)?
daser333 [38]

Answer:

The 3rd graph represents the point (-1, 4) as the solution to the system of linear equations.

The correct graph is also attached below.

Step-by-step explanation:

We know when two lines meet at a certain point, the point where they meet is called the point of intersection.

We also know that the point of intersection of two lines is termed as the solution of the system of linear equations.

We are given the point (-1, 4) as the solution of the system of linear equations.

It means the two lines meet at x = -1, and y = 4.

In other words,

(x, y) = (-1, 4) is called the point of intersection of the system of linear equations.

Now, if we closely check the graph of these two lines, we can easily figure out that the 3rd from the right side is the graph that represents the solution to the system of linear equations.

The 3rd graph indicates that the two lines meet at x = -1, and y = 4.

Hence, the point of intersection of 3rd graph is:

(x, y) = (-1, 4)

Therefore, the 3rd graph represents the point (-1, 4) as the solution to the system of linear equations.

The correct graph is also attached below.

7 0
3 years ago
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