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3 years ago

~!!!!! PLEASE HELP IM IN 7TH GRADE LEARNING 9TH AND 8TH GRADE MATH !!!!!~

Mathematics

1 answer:

chubhunter [2.5K]3 years ago

7 0

Y = mx+b that’ll help you answer it

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What is 1.23 pounds as an mixed number?

torisob [31]

1 23/100 is the mixed number.

4 0

3 years ago

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The number of students in a class is 60. The number of boys is seven-fifths the number of girls. Find the number of boys in the

Fynjy0 [20]

Step-by-step explanation:

Let the number of girls = x

Therefore, no. of boys = $\frac{7}{5} \times x$

$\because \: no \: of \: boys + no \: of \: girls \: = 60 \\ \\ \therefore \: \frac{7}{5} x + x = 60 \\ \\ \therefore \: \frac{7x + 5x}{5} = 60 \\ \\ \therefore \: \frac{12x}{5} = 60 \\ \\ \therefore \: x = 60 \times \frac{5}{12} \\ \\ \therefore \: x = 5 \times 5 \\ \\ \therefore \: x = 25 \\ \\ \therefore \: \frac{7}{5} x = \frac{7}{5} \times 25 = 7 \times 5 = 35 \\$

Thus, no of boys in the class is 35.

3 0

3 years ago

What is the answer to 5(6x-3)

myrzilka [38]

30x-15

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

-1/4(-8x+12y) what is this answer cause I need it it is a big q<br> question

Pie

Answer:

2x - 3y

Step-by-step explanation:

Step 1 :

Simplify —

Equation at the end of step 1 :

0 - (— • (12y - 8x))

Step 2 :

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

12y - 8x = -4 • (2x - 3y)

Equation at the end of step 3 :

0 - (3y - 2x)

Step 4 :

Final result :

2x - 3y

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plz mark me as brainliest :)

7 0

4 years ago

Jason has $0.37 worth of pennies and nickels. He has a total of 13 pennies and nickels altogether. Determine the number of penni

fredd [130]

Answer: Jason has 7 pennies and 6 nickels.

Step-by-step explanation:

Let be "p" the number of pennies that Jason has and "n" the number of nickels that Jason has.

Set up a system of equations:

$\left \{ {p+n=13} \atop {0.01p+0.05n=0.37}} \right.$

You can use the Elimination Method. Multiply the first equation by -0.01 and add both equations:

$\left \{ {-0.01p-0.01n=-0.13} \atop {0.01p+0.05n=0.37 }} \right.\\................................\\0.04n=0.24\\\\n=6$

Susbtitute this value into the first equation and solve for "p":

$p+6=13\\\\p=13-6\\\\p=7$

4 0

3 years ago