All categories

3 years ago

Solve for z. a(t+z)=45+47

Mathematics

1 answer:

Ede4ka [16]3 years ago

4 0

Answer:

z = (92/a) - t is your answer

Step-by-step explanation:

Isolate the z. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, combine like terms

45 + 47 = 92

First, divide a from both sides

(a(t + z))/a = (92)/a

t + z = 92/a

Isolate the z. Subtract t from both sides

t (-t) + z = (92/a) - t

z = (92/a) - t is your answer

You might be interested in

genetic experiment with peas resulted in one sample of offspring that consisted of green peas and yellow peas. a. Construct a %

Andreas93 [3]

Complete Question

A genetic experiment with peas resulted in one sample of offspring that consisted of 432 green peas and 164 yellow peas. a. Construct a 95% confidence interval to estimate of the percentage of yellow peas. b. It was expected that 25% of the offspring peas would be yellow. Given that the percentage of offspring yellow peas is not 25%, do the results contradict expectations?

Answer:

The 95% confidence interval is $0.2392 < p < 0.3108$

No, the confidence interval includes 0.25, so the true percentage could easily equal 25%

Step-by-step explanation:

From the question we are told that

The total sample size is $n = 432 + 164 =596$

The number of offspring that is yellow peas is $y = 432$

The number of offspring that is green peas is $g = 164$

The sample proportion for offspring that are yellow peas is mathematically evaluated as

$\r p = \frac{ 164 }{596}$

$\r p = 0.275$

Given the the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = (100 - 95)\%$

$\alpha = 5\% = 0.0 5$

The critical value of $\frac{\alpha }{2}$ from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\r p (1- \r p )}{n} }$

=> $E = 1.96 * \sqrt{\frac{0.275 (1- 0.275 )}{596} }$

=> $E = 0.0358$

The 95% confidence interval is mathematically represented as

$\r p - E < p < \r p + E$

=> $0.275 - 0.0358 < p < 0.275 + 0.0358$

=> $0.2392 < p < 0.3108$

6 0

3 years ago

30 points plz help I need help with question 16 plz plz plz help I need answer in 5 minutes.

kkurt [141]

Answer:

A. The area of the park is 251015.62 m squared.

B. The sod would cost $313769.52

C. The perimeter of the border is 1927.5 m

D. The cost fo the paving stone is going to be $5300.625

E. The total cost for the sod and pacing stone combined is $31139070.14

HOPE THIS HELPS I WOULD APPRECIATE BRAINLIEST IF POSSIBLE :)

5 0

2 years ago

35 points!! Only comment if you really know the answer please.

hodyreva [135]

Y = 3x - 1 ---- (1)
x - y = -9 ---- (2)

From Equation 2:
x - y = - 9
x + 9 = y
y = x + 9 --- (2a)

(1) - (2a):
0 = 3x - x - 1 - 9
0 = 2x - 10
2x - 10 = 0
2x = 10
x = 5 ---- sub into (1)

y = 3(5) - 1
y = 15 - 1
y = 14

5 0

4 years ago

A cab service charges $4 plus $1.50 per mile. Kate wants to spend no more

bearhunter [10]

Answer:

Step-by-step explanation:

took the test i got bj : fz wf

3 0

3 years ago

Read 2 more answers

What is 1 4/10 + 2 2/10

telo118 [61]