7 - 3 ( 5t - 10 ) = 67

Answers

Answer 1
Answer: 7-3(5t-10)=67

7-(3*5t-3*10)=67

7-15t-(-30)=67

7-15t+30=67

-15t=67-30-7

-15t=30

then...

t=-(30)/(15)

\boxed{\boxed{t=-2}}
Answer 2
Answer: Answer in an annex
....................................

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Which sets of numbers are closed under addition?Choose all answers that are correct.

A.
whole numbers

B.
natural numbers

C.
negative integers

D.
integers

Answers

C and D
.............................

Please help me! I have no idea how to do this and I will mark you as brainliest!

Answers

Answer:

2520 stones which will cost £6300

Step-by-step explanation:

First find area of path:

630 x 120 = 75600 cm²

then find how many stones will be needed:

75600/30 = 2520

then find out the total cost:

2520 x 2.5 = £6300

Hope this helps!

Answer:

£125

Step-by-step explanation:

First, find perimeter.

630 + 630 + 120 + 120 = 1500

Divide by stone width.

1500 / 30 = 50

Multiply by the cost.

50 x 2.5 = 125

Do you know
10(55-1000)/90+2=?

Answers

The answer to the question is: No, but I could calculate it if that were necessary.
• We're starting by calculating the number in brackets: 55-1000 = - 945.
• Now , we have:

 • 10x (-945) : 90 + 2 =
= -9450: 90 + 2 =
= - 105 +2
= - 103 .

The perimeter of the square (problem 54)

Answers

Take the problem 54 and add it

Evaluate sinA for the triangle shown

Answers

The value of sinA in the triangle is 0.6. Then the correct option is A.

What is trigonometry?

Trigonometry is the branch of mathematics that set up a relationship between the sides and angle of the right-angle triangles.

In the given triangle base is 8 and the perpendicular is 6 units. To calculate sinA we need hypotenuse and then use the Pythagorean theorem.

H² = P² + B²

H² = 6² + 8²

H² = 36 + 64

H² = 100

H = 10

The angle sinA is the ratio of perpendicular and hypotenuse.

sinA = P / H

sinA = 6 / 10

sinA = 0.6

Hence, the correct answer is option A.

To know more about Trigonometry follow

brainly.com/question/24349828

#SPJ2

Answer:

0.6

Step-by-step explanation:

What is the range of the function shown in this table?X
3
4
5
6

y
4
4
2
5

А. (3, 4)
В. (3, 4), (4, 4), (5, 2), (6, 5)
с. {3, 4, 5, 6}
D. {2, 4, 5}

Answers

Answer: D

Step-by-step explanation:

when you look at the range, you're looking at the Y values. you start with the smallest number and put them in order from least to greatest, no repeats. (ex: 4,4,8,3,12 would become 3,4,8,12