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3 years ago

Helllp me plzzzzzzzz i will mark brainlist

Mathematics

2 answers:

EastWind [94]3 years ago

8 0

126 is the answer if you add all the birds together you get 140 then divide it by the number of blue jays and you roughly get 2.4 so you divide 300 by 2.4 and you’ll get a number close to 126 (125) just me doing the math roughly but yeah the answer is definitely 126

katen-ka-za [31]3 years ago

7 0

Answer:

126

Step-by-step explanation:

set up a proportion, 59/140= x/300. Cross multiply: 140x= 17700. Then divide both sides by 140. the answer is 126.42857... ore rounded, 126.

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PLZZ ZZZZZZ HELPPPPPPP

iren [92.7K]

Answer:

the answer is 2 4/5

Step-by-step explanation:

there are two wholes plus 4 out of 5 pieces, so it is 2 and 4/5.

5 0

2 years ago

What is the value of x? x = 23 x = 35 x = 58 x = 93

Akimi4 [234]

we know that

m∠SQR+x= $180$ -------> by supplementary angles

m∠SQR= $180-x$

The sum of the internal angles of a triangle is equal to $180$ degrees

m∠SQR+m∠QSR+m∠SRQ= $180$

substitute the values in the formula

m∠SQR+ $35$ + $58$ = $180$

m∠SQR= $87$ degrees

<u>Find the value of x</u>

m∠SQR= $180-x$

x= $180$ -m∠SQR

x= $180-87$

x= $93$ degrees

therefore

<u>the answer is</u>

the value of x is $93$ degrees

5 0

3 years ago

Read 2 more answers

What is the value of X?

LenKa [72]

Answer:

5.625 or 5-5/8 or 45/8

Step-by-step explanation:

Solve using Similar triangles again

ratio of 4:7.5

3/x=4/7.5 cross multiply

22.5=4x

x=22.5/4=5.625=5-5/8=45/8

7 0

3 years ago

Find the percent of change. Round to the nearest tenth of a percent if necessary. 57 people to 65 people. About___ % increase.

kap26 [50]

Answer:

14.0% increase

Step-by-step explanation:

One formula you can use for this is ...

percent change = ((new value)/(old value) -1) × 100%

= (65/57 -1) × 100%

≈ 0.1403 × 100%

≈ 14.0% . . . . . . the positive sign indicates an increase

5 0

3 years ago

The mean annual inflation rate in the United States over the past 98 years is 3.37% and has a standard deviation of approximatel

Ksenya-84 [330]

Answer:

38.59% probability that inflation rate will be below 1.9% in 2019

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 3.37, \sigma = 5$

If the annual inflation rate is normally distributed, what is the probability that inflation rate will be below 1.9% in 2019?

This is the pvalue of Z when X = 1.9. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1.9 - 3.37}{5}$

$Z = -0.29$

$Z = -0.29$ has a pvalue of 0.3859

38.59% probability that inflation rate will be below 1.9% in 2019

4 0

3 years ago