1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna35 [415]
3 years ago
15

Can someone answer my last two questions?

Mathematics
1 answer:
MAVERICK [17]3 years ago
6 0

Answer:

Hit me with them

Step-by-step explanation:

You might be interested in
5(x+21)= 8x help me please
chubhunter [2.5K]

Answer:

35

Step-by-step explanation:

Steps

1.  5x + 105 = 8x because you distributed the 5

2. 105 = 3x because you subtract the 5x on both sides

3. 105/3 = x because you divide the 3 and 105/3 is 35

5 0
1 year ago
tims math homework is on five consecutive pages in the math textbook, and the sum of those page numbers is 630. what is the page
Brrunno [24]

Answer:129

Step-by-step explanation:

630/5 is 126. Add 126, two numbers below it, and two above it. So, 124+125+126+127+128=630. The next page is 129

3 0
3 years ago
2. P337. 23. A large box contains 10,000 ball bearings. A random sample of 120 is chosen. The sample mean diameter is 10 mm, and
Rashid [163]

Answer:

B is True

A, C. D are false

Step-by-step explanation:

Given :

Sample size, n = 120

Mean diameter, m = 10

Standard deviation, s = 0.24

Confidence level, Zcritical ; Z0.05/2 = Z0.025 = 1.96

The confidence interval represents how the true mean value compares to a set of values around the mean computed from a set of sample drawn from the population.

The population here is N = 10000

To obtain

Confidence interval (C. I) :

Mean ± margin of error

Margin of Error = Zcritical * s/sqrt(n)

Margin of Error = 1.96 * 0.24/sqrt(120)

Confidence interval for the 10,000 ball bearing :

10 ± 1.96 * (0.24) / sqrt(120)

Hence. The confidence interval defined as :

10 ± 1.96 * (0.24) / sqrt(120) is the 95% confidence interval for the mean diameter of the 10,000 bearings in the box.

4 0
2 years ago
5 times marys age is the same as 28 less than 7 times her age. Find her age
Gnom [1K]

setup a simple algebraic equation and solve.

5x = 7x-28

-5x   -5x

0=2x-28

+28  +28

28=2x

Now divide both sides by 2 and you get that she is 14

3 0
3 years ago
Read 2 more answers
How to write 30 1/4% as a fraction in simplest formq
ycow [4]
p\%=\dfrac{p}{100}\\\\30\dfrac{1}{4}=\dfrac{30\cdot4+1}{4}=\dfrac{121}{4}\\\\30\dfrac{1}{4}\%=\dfrac{121}{4}\%=\dfrac{\frac{121}{4}}{100}=\dfrac{121}{4}\cdot\dfrac{1}{100}=\dfrac{121}{400}\\\\Answer:\boxed{30\frac{1}{4}\%=\frac{121}{400}}
8 0
3 years ago
Other questions:
  • 14. If a chicken farm sold 3,000 dozen eggs last week, how many individual eggs were sold?
    13·2 answers
  • Analyze the diagram below and complete the statement that follows.
    12·2 answers
  • Jessica want to slowly decrease her daily caloric intake, which is currently 2500 calories per day. She plans to decrease her ca
    15·1 answer
  • At a New Car Dealership a particular model comes in 4 trims levels, 5 different colors, and 3 different interiors. How many diff
    7·1 answer
  • Estimate the sum 258+565
    14·1 answer
  • Que numero elevado al cuadrado mas 12 da como resultado 48?
    9·1 answer
  • How do you show your work on questions that are confeusing when you show your work
    10·1 answer
  • I GIVEEE BRAINLILST TTT
    13·1 answer
  • mr John wants to put a fence around his farm. if the length of one side is 25m and the width is the same length what would be th
    9·2 answers
  • Can someone please help me
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!