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Readme [11.4K]
3 years ago
5

Theresa bought three containers of tennis balls at $2.98 each. She had a coupon for $1 off. Her mom paid for half of the remaini

ng cost. How much did Theresa pay? Evaluate the expression [(3×2.98)-1]÷2
Mathematics
1 answer:
Rzqust [24]3 years ago
6 0

Answer:

$3.97

Step-by-step explanation:

Three containers @$2.98 = 3 × 2.98 = $8.94

                                               Less $1 =   <u>-1.00 </u>

                                                                  7.94

Less 50% paid my mom = ½ × 7.94 =   <u>-3.97 </u>

                               Paid by Theresa =  $3.97

[(3 × 2.98) - 1] ÷ 2 = (8.94 - 1) ÷ 2 = 7.94 ÷ 2 = 3.97

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What is the inverse of the function f(x) = 2x – 10?
Nadusha1986 [10]

Answer:

f⁻¹(x) = (1/2)x +5

Step-by-step explanation:

In y = f(x), swap the variables, then solve for y. The expression you get is f⁻¹(x).

... y = 2x -10

... x = 2y -10 . . . . . . swapped variables

... x +10 = 2y . . . . . add 10

... (1/2)x + 5 = y . . . . divide by 2

... f⁻¹(x) = (1/2)x + 5 . . . . . . rewrite using function notation

6 0
3 years ago
Gerry visited a farm and saw a total of 87 chickens and pigs. If there were a total of 248 legs between all of these animals, ho
Shkiper50 [21]

Answer: 37

Step-by-step explanation:

87 x 2 = 174

248 - 174 = 74

74 divided by 2 = 37

So, therefore you answer will be 37

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6 0
3 years ago
Which of the following expressions are equivalent to -5/-7×-11/-6 ​
USPshnik [31]

Answer:

B.

Step-by-step explanation:

-5/-7×-11/-6

= (-5 * -11)  / (-7*-6)

= 55 / 42.

A. =  - (6/-11) = 6/11

-5/7 * 6/11 =  -30/77.

B.   - (-11/7) = 11/7

5/6 * 11/7

= 55/42.

7 0
3 years ago
Answer please I need before Friday
aleksley [76]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Let A= {a,b,c,d,e} and let B= {1,2,3,4,5} determine n(AxB)
777dan777 [17]

n(AxB) = 25

Step-by-step explanation:

AxB in sets is called Cartesian product. And is defined as a set of ordered pairs (a,b) where a belongs to A and b belongs to B.

Given

A = {a,b,c,d,e}

B = {1,2,3,4,5}

The number of elements for Cartesian product of two sets is determined by:

n(AxB) = n(A) * n(B)

Here

n(A) = 5\\n(B) = 5

So,

n(AxB) = 5*5 = 25

Hence,

n(AxB) = 25

Keywords: Sets, Cartesian Product

Learn more about sets at:

  • brainly.com/question/5102020
  • brainly.com/question/5147732

#LearnwithBrainly

7 0
3 years ago
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