MATHEMATICS HIGH SCHOOL

A single box of thumb tacks weighed 3 1⁄2 ounces. If a teacher had 4 1⁄7 boxes, how
much would their combined weight be?

Answers

Answer 1
Answer:

The combined weight of the boxes which is the product of the weight per box and the number of boxes is 14.5 ounces

Weight of each box = 3 \frac {1}{2} \: ounces

Number of boxes = 4 \frac {1}{7}

The combined weight will be the product of each single box and the Number of boxes ;

Weight of each box × Number of boxes

\frac {7}{2} * \frac {29}{7} = (203)/(14)= 14 (1)/(2)

Therefore, the combined weight of the boxes will be 14.5 ounces

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Answer 2
Answer: 3 (1)/(2) *4 (1)/(7) = (7)/(2) * (29)/(7) = (29)/(2) = 14(1)/(2) =14.5

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A set of equations is given below: Equation C: y = 7x + 12 Equation D: y = 7x + 2 Which of the following best describes the number of solutions to the given set of equations? One solution Two solutions Many solutions No solution

Answers

There is no solution. If you sub in either equation for y you get =0 meaning there is no solution :) hope this helps

Answer:

its none i got it right

Step-by-step explanation:

Simplify –2x3y × xy 2. A. –12x4y3

B. –2x3y4

C. –2x4y3

D. –3x4y3

Answers

-2x^3y\cdot xy^2=-2x^(3+1)y^(1+2)=-2x^4y^3

Used:

a^n\cdot a^m=a^(n+m)

Answer: C. –2x^4y^3

PLEASEEEEEEEEEE HELPPPPP❤️

Answers

Answer:

B

Step-by-step explanation:

-6+√-4 = -6+2i

Answer:

-6 + 2i

Step-by-step explanation:

The square root of -4 is the imaginary number: 2i The -6 stays the same. So add,, but don't combine real and imaginary numbers.

-6 + 2i

This is grade 9 math, it's all one question and I'm having trouble understanding. ​

Answers

The solutions for the given problems we have:

1) The solution of the inequality is:

x ≤ 2

2) The absolute value equation has two solutions:

z= 2

z = -12

3) The correct matches are:

5y + 2 = 5y + 8   this has no solutions

2*(y + 4) = 2y + 8   this has infinite solutions

5y + 2 = 2y + 8  This has a single solution.

Here, we have,

Remember that solving means to isolate the variable in one side of the expression.

1) We have the inequality:

-4x + 17 ≥ 9

-4x  ≥ 9 - 17

x ≤ -8/-4

x ≤ 2

This is the solution of the inequality.

2) We have the absolute value function:

|5 + z| + 3 = 10

|5 + z| = 10 - 3 = 7

We can decompose this into:

5 + z = 7

5 + z = -7

Then the two solutions are:

z = 7 - 5 = 2

z = -7 - 5 = -12

3) The correct matches here are:

5y + 2 = 5y + 8   this has no solutions, these are parallel lines.

2*(y + 4) = 2y + 8   this has infinite solutions (all real numbers).

5y + 2 = 2y + 8  This has a single solution.

Learn more about inequalities:

brainly.com/question/24372553

#SPJ1

complete question:

HELP ASAP 30 POINTS 9TH GRADE MATH. WILL GIVE BRAINIEST IF CORRECT

Solve.

Question 1.

-4x + 17 ≥ 9.

Question 2.

| 5 + z | + 3 = 10.

Question 3.

Match to the correct one

5y + 2 = 5y + 8. 1. All real numbers

2 (y + 4) = 2y + 8. 2. No solutions

5y + 2 = 2y + 8 3. Infinity many solutions.

What is the square root of 64

Answers


Positive 8 and negative 8 both are.
the square root of 64 is 8 or -8
because 8²=64 and (-8)²=64

ACCORDING to the rate of electricity charge, the minimum charge up to 20 unit is Rs 80 and the cost per unit from 21 units to 250 units is Rs 7.30. How many units were consumed by Rs 1248?​

Answers

Answer:

180

Step-by-step explanation:

let x = total units of electricity after 250 units

the total units of electricity consumed can be determined using the formula below

80 + 7.3x = 1248

7.3x = 1248 - 80

7.3x = 1168

divide both sides of the equation by 7.3

x = 1168 / 7.3

x = 160

total electricity consumed = 160 + 20 = 180

160
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