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2 years ago

The sum of a number and two is equal to negative seven. Translate this sentence to an equation and then find the number.

Mathematics

1 answer:

dimaraw [331]2 years ago

8 0

Answer: -9

Step-by-step explanation:

Given

The sum of a number and two is equal to negative 7

Suppose x is that number

$\therefore x+2=-7\\\text{add -2 both sides}\\\Rightarrow x+2-2=-7-2\\\Rightarrow x=-9$

So, the number is $-9$ .

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Please help me with this math question

spayn [35]

Y=1/9(-1)+4

Explanation:
X=-1 and y=8

6 0

2 years ago

An amusement park offers two options. Option 1 involves a $10 admission fee plus $0.50 per ride. Option 2 involves a $6 admissio

Art [367]

Answer:

16 rides

Step-by-step explanation:

Option 1 . Admission fee = $10

Each ride = $0.50

Option 2 . Admission fee = $6

Each ride = $0.75

Let no. of rides be x

So, cost of ride according to option 1 = 0.50x

So, total cost after having x rides according to option 1 :

= 10+0.50x ---1

Cost of ride according to option 2 = 0.75x

So, total cost after having x rides according to option 2 :

= 6+0.75x --2

Now to find the beak even point i.e. having the same cost

Equate 1 and 2

$10+0.50x=6+ 0.75x$

$10-6= 0.75x-0.50x$

$4= 0.25x$

$\frac{4}{0.25} =x$

$16=x$

Thus for 16 rides , the two options have the same cost .

Hence the break even point is 16 rides

5 0

2 years ago

Can someone create two expressions that are equivalent to 3(4j + 4 + j). Please show all steps in your work.

NNADVOKAT [17]

12j + 12 + 3j or 15j + 12. This is because if you use Distributive Property to distribute the 3, then you multiply 3 by all the number inside the parentheses. I have two expressions because once you get get the answer after you use the property, then you can combine like terms, such as 12j and 3j which is 15j. Hope this helps!

4 0

2 years ago

Read 2 more answers

T is the midpoint of AE. AT=4x-3 and TE= 2x+7, find the length of AE

iris [78.8K]

If T is the midpoint, then that means its exactly 1/2 of the way between 2 points

this means we can set the 2 given values equal

4x - 3 = 2x + 7

first move like terms to the same side

2x = 10

x = 5

now that we know the length of x, we plug it back in to get the length

4x - 3 + 2x + 7 = 6x + 4

6(5) + 4 = 34

7 0

2 years ago

Write an expression for the quotient of b divided by the difference of two minus three.<br>

Marina86 [1]

Answer:

b/(2-3)

Step-by-step explanation:

7 0

2 years ago