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
Viefleur [7K]
3 years ago
8

Solve for a. 7a + 18 = 102 a =

Mathematics
2 answers:
Virty [35]3 years ago
6 0

Answer:

12

Step-by-step explanation:

Inessa [10]3 years ago
3 0
7a+18=102
7a= 102-18
7a= 84
a = 84/7= 12
You might be interested in
A humanities professor assigns letter grades on a test according to the following scheme. A: Top 6% of scores B: Scores below th
uysha [10]

Answer:

Limits for B scores

( 79,2 ; 92 )

Step-by-step explanation:

The interval we are looking for is between 6 % and 59%

p₁  = 6 %     p₁ = 0,06

As this point is at the right tail of the bell we better look for

p = 1- 0,06     p = 0,94

In z-table z score for 0,94062  is:    z₁ = 1,56      ( 0,94062 ≈ 0,94 )

Doing the same to find z₂ score for 59%  or 0,59

In z-table again

p =  0,59      

z₂ = 0,023

Now we know

1,56 * σ  = x₁ - 79

1,56*8,4 + 79 = x₁

x₁  =  92,10        or  x₁ = 92

And

0,023*8,4 + 79  = x₂

x₂ = 79,19         or    x₂ = 79,2

                 

4 0
3 years ago
Choose the correct steps to graph the slope of -2/5
notka56 [123]

Answer:

A) 2 down, 5 right

Step-by-step explanation:

hope this helpss

8 0
2 years ago
Read 2 more answers
Whats the producr of -2x cubed + x - 5?​
baherus [9]
The answer is -2x^3+10x^2
4 0
3 years ago
Find the volume of a cone with a base radius of 6 yd and a height of 9 yd
Veronika [31]
\text {Volume =}  \dfrac{1}{3}  \pi  r^{2} h

\text {Volume =}  \dfrac{1}{3}  \pi  (6)^{2} (9)

\text {Volume =}  339.29 \ yd^3
8 0
3 years ago
What is the greatest common factor of 42, 56, and 112
VashaNatasha [74]

Answer: gcf, hcf, gcd (42; 112) = 14 = 2 × 7: greatest (highest) common factor (divisor), calculated.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • 8 yd. 1 ft. 1 in. + 6 yd. 2 ft. 8 in.
    13·1 answer
  • HELPPP PLEASEE l
    8·1 answer
  • The function h(t = 200 – 16t2 represents the height of a ball dropped from 200 feet. how far had the ball traveled after falling
    13·1 answer
  • 3. Use the relationship between 21 and 25 to decide whether the top and middle shelves are
    5·1 answer
  • Sebastian grew 21-3 inches each year for the past 3 years. How many inches total has Sebastian grown in the past 3 years?
    10·1 answer
  • Steph makes scones in three flavours: cheese, fruit and plain. She makes: • 4 times as many fruit scones as cheese scones, • 3 t
    6·1 answer
  • There are 2.54 centimeters in 1 inch. If a pencil is 18 cm long, how many inches is it? Round to the nearest whole number.
    8·1 answer
  • Find the volume for the regular pyramid. <br> V =
    7·1 answer
  • What is the difference when adding whole numbers and adding decimals?
    6·1 answer
  • Write the slope-intercept form of the equation of the line through the given point with the given slope
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!