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2 years ago

Three Questions 1) What does 5 7/8 - 2 3/8 equal? and 2)What does 5 7/12 -4 1/12 equal?3) What does 3 5/10 - 1 3/10 equal?

Mathematics

1 answer:

stiks02 [169]2 years ago

7 0

1) 28/8=3 1/2
2) 18/12=1 1/2
3) 22/10=2 1/5

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Given that f(x) = 2x + 1 and g(x) = the quantity of 3x minus 1, divided by 2, solve for g(f(3)). 5 7 9 10

AlladinOne [14]

The correct answer is 10.

In order to evaluate any composite function, you need to first put the value in for the inside function. In this case f(x) is on the inside along with the number 3. So, we input 3 in for x in f(x).

f(x) = 2x + 1

f(3) = 2(3) + 1

f(3) = 6 + 1

f(3) = 7

Now that we have the value of f(3), we can stick the answer in for the outside function, which is g(x).

g(x) = (3x - 1)/2

g(7) = (3(7) - 1)/ 2

g(7) = (21 - 1)/2

g(7) = 20/2

g(f(3)) = 10

5 0

3 years ago

Anthony has been saving nickels dimes quarters over the last year he knows that he has twice as many nickels as quarters. change

OLga [1]

Answer:

The number of nickel's coin is 150

The number of dime's coin is 35

The number of quarter's coin is 75

Step-by-step explanation:

Let

x ----> the number of nickel's coin

y ---> the number of dime's coin

z ---> the number of quarter's coin

Remember that

$1\ nickel=\$0.05$

$1\ dime=\$0.10$

$1\ quarter=\$0.25$

we know that

$x+y+z=260$ ----> equation A

$0.05x+0.10y+0.25z=29.75$ ----> equation B

$x=2z$ ----> equation C

substitute equation C in equation A and equation B

$2z+y+z=260$

$3z+y=260$ ---> equation A1

$0.05(2z)+0.10y+0.25z=29.75$

$0.35z+0.10y=29.75$ -----> equation B1

Solve the system of equations A1 and B1 by graphing

Remember that the solution is the intersection point both graphs

The solution is the point (75,35)

see the attached figure

z=75, y=35

<em>Find the value of x</em>

$x=2(75)=150$

therefore

The number of nickel's coin is 150

The number of dime's coin is 35

The number of quarter's coin is 75

8 0

3 years ago

You have 5 bikes. Altogether it costs 789$ how much does each bike cost?

algol [13]

Answer:

$157.80

Step-by-step explanation:

$789 / 5 bikes

5 0

2 years ago

Read 2 more answers

Reduce to Standard form : (a) -21/91 (b) 32/(-256)

sweet [91]

Answer:

a) -3/13

b) -1/8

Step-by-step explanation:

a) - (21 / 7) / (91 / 7) = 3/13

b) (32 / 32 ) / - (256 / 32) = -1/8

5 0

2 years ago

Your princpal has decided to provide a treat to everyone in your grade before thanksgiving break-ice cream bars! One box contain

Assoli18 [71]

Answer:

8 boxes approx

Step-by-step explanation:

Step one:

given data

One box contains 48 bars

Required

The number of boxes needed for a total of 338 students if each person is to get at least one bar.

Step two:

this can be gotten by dividing 338 by the number of the bar in a box

= 338/48

=7.04

=8 boxes approx

He needs to purchase at least 8 box

4 0

3 years ago