Tomar found 14 web sites that have photos of mars. Jay found 6 of those sitesand 5 others that tamar did not find. How many different web sites did they find in all?

Answers

Answer 1

Answer:

Answer:

27 websites

Step-by-step explanation:

Tomar found 14. Jay found 6 of the 14. Subtract 6 from 14 and you get 8. Add the 5 to the 8. You'll get 13. Now add 14 and 13 together. The total is 27. Tomar and Jay found 27 websites in all.

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Solve the problem. The formula d = rt gives the distance traveled in time t at rate r. If a bicyclist rides for 2.3 hours and travels 41 miles, what was her average speed? A. 9.43 miles per hour B. 5.6 miles per hour C. 17.83 miles per hour D. 38.7 miles per hour

Answers

C. 17.83 miles per hour
Instead of using D=R*T use D/T=R
D=41
T=2.3
41/2.3=17.83

C.) 17.83 because if d=rt and d= 41 and t= 2.3, then the rate or speed is 17.83

Which is bigger 1/7 of 14 or half of 36

Answers

1/7 * 14
2

1/2 * 36
18

So, 1/2 of 36 (18) is greater than 1/7 of 14 (2).

Jim has a total of 12 coins. Some of them are nickels, and the others are quarters. If he had 12 more nickels, then the value of the nickels would be the same as the value of the quarters. How many quarters does he have?Let n = the number of nickels and q = the number of quarters.

Which two equations can be used to solve this problem? Select the two that apply.

Answers

$n-\ number\ of\ nickels\nq-\ number\ of\ quarters\n\nn+q=12\ \ \ \ | n=12-q\n0,05(n+12)=0,25q\n\n0,05n+0,6=0,25q\ \ \ | substitute\ n=12-q \n\n0,05(12-q)+0,6=0,25q\n\n0,6-0,05q+0,6=0,25q\n\n1,2-0,05q=0,25q\ \ \ | add\ 0,05q\n\n1,2=0,3q\ \ \ | divide\ by\ 1,2\n\nq=4\n\nHe\ has\ 4\ quarters.$

An initial investment of $60.00 increases in value by 15% each year. Which of the following statements are true? Select all that apply. This function can be represented by the quadratic equation f(x)=0.15(x+60)^2 This situation can be represented by the exponential function f(x)=60 x 1.15^x This function has no x-intercept After 4 years the value of the investment will be $120.00 After 6 years the value of the investment will be $653.00 After 7.86 years the value of the investment will be 3 times the initial value After 8 years the value of the investment will be $184.00

Answers

Given:
initial investment = $60.
increase in value by 15% each year

The function that best represents the above problem is: f(x) = 60 * (1.15)^x

f(4) = 60 * (1.15)⁴ = 60 * 1.75 = 105.00
f(6) = 60 * (1.15)⁶ = 60 * 2.31 = 138.60
f(7.86) = 60 * (1.15)⁷.⁸⁶ = 60 * 3 = 180
After 7.86 years the value of the investment will be 3 times the initial value
f(8) = 60 * (1.15)⁸ = 60 * 3.06 = 183.60
After 8 years the value of the investment will be $184.00

Kayleigh solved the equation 24 = c/12 as shown. What error did she make? Correct her work.Kayleigh work:
24 = c/12
C/12 = 24
12 (c/12) = 24/12
C = 2