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nevsk [136]
3 years ago
9

-5 1/2 + 7 3/4 value of the expression

Mathematics
2 answers:
KatRina [158]3 years ago
5 0

Answer:

2 1/4.

Step-by-step explanation:

-5 1/2 + 7 3/4

= 7 3/4 - 5 1/2

= 7 - 5 + 3/4 - 1/2

= 2 + 1/4

=  2 1/4.

Irina18 [472]3 years ago
4 0

Answer:

2 1/4

Step-by-step explanation:

-11/2+7 3/4

-11/2 + 31/4

= 9/4

= 2 1/4

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In a rectangular coordinate plane what is the distance between points (-3,0) and (3,8)
zheka24 [161]

To calculate the distance between two points, we can use a formula that is a variation Pythagorean Theorem. Look:


\mathsf{d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}}


"d" represents the distance and coordinates are expressed as follows: (x, y)


Let's go to the calculations.


\mathsf{d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}}\\\\ \mathsf{d=\sqrt{(3-(-3))^2+(8-0)^2}}\\\\ \mathsf{d=\sqrt{(3+3)^2+(8)^2}}\\\\ \mathsf{d=\sqrt{(6)^2+64}}\\\\ \mathsf{d=\sqrt{36+64}}\\\\ \mathsf{d=\sqrt{100}}\\\\ \underline{\mathsf{d=10}}


The answer is 10 uc.

8 0
4 years ago
Mr. and Mrs. Lopez are putting square tiles on the floor in their bathroom.They can fit 6 rows of 4 tiles in the bathroom.How ma
Trava [24]
They can fit 24 tiles because 

6 rows times 4 tiles =24 tiles

6x 4 =24

Find how much it will cost.

24 x 5 = 120

It will cost $120



6 0
3 years ago
Read 2 more answers
jackson is going to the movies. he has to pay $7 for his ticket and $2 for each box of candy he buys. write an expression that r
ruslelena [56]

If Jackson went to the movies and payed $7 initially for his ticket and then payed $2 for each box of candy that he buys, then the equation could look like this: y = 2x + 7, where y represents the total cost and x represents the number of boxes of candy Jackson buys.

6 0
4 years ago
Read 2 more answers
What happens to the value of the expression 80-2r80−2r80, minus, 2, r as rrr decreases? Choose 1 answer: Choose 1 answer: (Choic
Pie

Answer:

(Choice B) B It decreases.

Step-by-step explanation:

According to the situation, the solution of the value of the expression is as follows

Let us assume

r         80 -2r

5        80 - 10 = 70

4        80 - 8 = 72

3        80 - 6 = 74

2        80 - 4 = 76

1         80 - 2 = 78

As we can from the above calculation that expression value risen if r value decreased

Therefore the correct option is B.

6 0
4 years ago
Read 2 more answers
The music store sold 12 trumoets and 19 clarinets last month. If clariners sell for $139.95 and the store made $4,578.45 from sa
Kamila [148]

Answer:

$159.95

Step-by-step explanation:

Let price of trumphet be defined by x

price of clarinet = $139.95

Number of clarinets sold = 19

Earning through clarinets' sale = 19*139.95 = 2659.05

Total earning of store = $4578.45

Earning through trumphets' sale = 4578.45 - 2659.05 = 1919.40

price of one trumohet = \frac{1919.40}{12} = 159.95

price of clarinet = $159.95

7 0
4 years ago
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