All categories

3 years ago

I need help with 19 20 22 and 23 I will give brainliest

Mathematics

2 answers:

Doss [256]3 years ago

8 0

19.) 98=t-18; 98+18=t; t=116;
20.) 12=g-56; 12+56=g; g=68;
22.) p-11=5; p=5+11; p=16;
23.) a-1.5=4.2; a=4.2+1.5; a=5.7;

Ganezh [65]3 years ago

6 0

Question 19:
---------------------------------------------
Question
---------------------------------------------
98 = t - 18

---------------------------------------------
add 18 to both sides
---------------------------------------------
98 + 18 = t - 18 + 18
116 = t
t = 116

---------------------------------------------
Answer: t = 116
---------------------------------------------

Question 20:
---------------------------------------------
Question
---------------------------------------------
12 = g - 56

---------------------------------------------
Add 56 to both sides
---------------------------------------------
12 + 56 = g - 56 + 56
68 = g
g = 68

---------------------------------------------
Answer: g = 68
---------------------------------------------

Question 22:
---------------------------------------------
Question
---------------------------------------------
p - 11 = 5

---------------------------------------------
Add 11 to both sides
---------------------------------------------
p - 11 + 11 = 5 + 11
p = 16

---------------------------------------------
Answer: p = 16
---------------------------------------------

Question 23:
---------------------------------------------
Question
---------------------------------------------
a - 1.5 = 4.2

---------------------------------------------
Add 1.5 to both sides
---------------------------------------------
a - 1.5 + 1.5 = 4.2 + 1.5
a = 5.7

---------------------------------------------
Answer: a = 5.7
---------------------------------------------

You might be interested in

a bag contains colored gumdrops 5 are cherry 3 are strawberry 2 are grape. a gumdrop will be randomly selected from the bag what

weqwewe [10]

Answer:

probablity of grapes = 0.2

Step-by-step explanation:

here's the solution : -

probablity of grapes =

$\frac{number \: of \: grapes}{total \: fruits}$

=》

$\frac{2}{2 + 3 + 5}$

=》

$\frac{2}{10}$

=》

$0.2$

6 0

3 years ago

Jon ran 4 miles in 35<br> minutes. How long did it<br> take him to run a mile

sesenic [268]

Answer:

35/4 minutes per mile

Step-by-step explanation:

rate = time/distance, therefore the answer is 35/4

4 0

3 years ago

The mean income per person in the United States is $44,500, and the distribution of incomes follows a normal distribution. A ran

Artist 52 [7]

Answer:

We conclude that the residents of Wilmington, Delaware, have higher income than the national average

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $44,500

Sample mean, $\bar{x}$ = $52,500

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, s = $9,500

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu = 44,500\text{ dollars}\\H_A: \mu > 44,500\text{ dollars}$

We use one-tailed(right) t test to perform this hypothesis.

c) Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{52500 - 44500}{\frac{9500}{\sqrt{16}} } = 3.37$

b) Rejection rule

If the calculated t-statistic is greater than the t-critical value, we fail to accept the null hypothesis and reject it.

Now,

$t_{critical} \text{ at 0.05 level of significance, 15 degree of freedom } = 1.753$

Since,

$t_{stat} > t_{critical}$

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis. We conclude that the residents of Wilmington, Delaware, have higher income than the national average

5 0

3 years ago

9. Eric guessed that Troop A was going to have 23 members in 2011 when they actually had 20. How much was Eric off by in his est

julia-pushkina [17]

Answer:The answer is D

Step-by-step explanation:

23 - 20=3

(3 ➗ 20) *100

= 3 ✖ 5

=15%

Please make brainliest

8 0