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3 years ago

Use the numbers to write related addition and subtraction sentences 6 7 8 9

Mathematics

2 answers:

Svetradugi [14.3K]3 years ago

6 0

6+7= 13

7-6= 1

8+9= 17

9-8=1

andrew11 [14]3 years ago

5 0

6+7= 13
7-6= 1
8+9= 17
9-8=1

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Which expression shows how the distribuive property can be used to multiply 8x29?

Natasha_Volkova [10]

The expression which shows how the distributive property of the can be used to multiply 8×29 as in the task content is; 8(20 + 9).

<h3>Which expression can be used to show how the distributive property can help multiply 8×29?</h3>

It follows from the task content that the given product to be multiplied is; 8×29.

Consequently, it follows from convention that the distributive property of multiplication allows that the multiplication in this case can be rewritten as follows;

8×29 = 8 (20 + 9)

Hence, we have; (8×20) + (8×9).

Read more on distributive property of multiplication;

brainly.com/question/2807928

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3 0

2 years ago

Subtract (3 + 21) from (-9-81).

Bess [88]

Answer:

-114

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

What is the area of trapezoid ABCD? A(-2,2) B(2,5) C(11,-7) D(1,-2)

Ksenya-84 [330]

Answer:

50 sq. units

Step-by-step explanation:

Join one diagonal of the trapezoid ABCD.

Assume that AC is the diagonal.

So, Area of the trapezoid = Area of Δ ABC + Area of Δ CAD.

Now, coordinates of A(-2,2), B(2,5), C(11,-7) and D(1,-2) are given.

We know, that three vertices of a triangle are $(x_{1},y_{1} )$ , $(x_{2},y_{2} )$ and $(x_{3},y_{3} )$ respectively, then the area of the triangle will be given by

$\frac{1}{2} |x_{1}(y_{2}-y_{3})+x_{2}(y_{3}-y_{1})+ x_{3}(y_{1}-y_{2} ) |$

Hence, area of Δ ABC will be

$\frac{1}{2} |-2(5-(-7))+2(-7-2)+11(2-5)|= 37.5$ sq units.

Again, area of Δ CAD will be

$\frac{1}{2} |11(2-(-2))-2(-2-(-7))+1(-7-2)|= 12.5$ sq units.

Therefore, the area of the trapezoid ABCD will be (37.5 + 12.5) = 50 sq, units. (Answer)

4 0

4 years ago

1/3 + 1/4 + 1/6<br> PLEASE SHOW WORK, thank you

Dovator [93]

Answer:

3/4

Step-by-step explanation:

1/3 + 1/4 + 1/6

notice that the denominators consists of the numbers 3, 4 and 6 and that the lowest common multiple for all 3 numbers is 12, hence all these fractions can be expressed with a denominator of 12

i.e

1/3 = 4/12

1/4 = 3/12

1/6 = 2/12

hence,

1/3 + 1/4 + 1/6

= 4/12 + 3/12 + 2/12

= (4+3+2) / 12

= 9/12 (simply)

= 3/4

3 0

3 years ago

Read 2 more answers

Karen's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Karen $5.50 per pound, and type

Lady_Fox [76]

Answer:

32 lb

Step-by-step explanation:

Let a = number of pounds of type A coffee used.

Let b = number of pounds of type B coffee used.

From the statement:

"This month's blend used three times as many pounds of type B coffee as type A"

we get this equation:

b = 3a

"Type A coffee costs Karen $5.50 per pound, and type B coffee costs $4.25 per pound."

She spend (in dollars) 5.50a + 4.25b, but since b = 3a, we get

5.5a + 4.25(3a) = 5.5a + 12.75a.

She spent $584, so

5.5a + 12.75a = 584

18.25a = 584

a = 32

She used 32 lb of type A coffee.

4 0

4 years ago