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Maurinko [17]
3 years ago
13

A rectangle swimming pool was 9 meters wide with a surface area of 90 square meters. what is the length of the pool.

Mathematics
1 answer:
Dominik [7]3 years ago
8 0
10 meters, divide 90 by 9 to get 10meters
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Mr. phill stopped to fill his car with gas on the way to New York. It took 1 ¼ minutes to fill a 15 liters of gas in his tank. A
KatRina [158]

Answer:

  • 4 1/6 min or 4 min 10 sec

Step-by-step explanation:

<u>Filling rate is:</u>

  • 15 ÷ 1 1/4 = 15 ÷ 5/4 = 15 × 4/5 = 12 l/min

<u>Total volume is 50 l, time required to fill is:</u>

  • 50/12 = 4 2/12 = 4 1/6 min or 4 min 10 sec
4 0
3 years ago
Jackson has a gift card for $120 to use at a department store. he wants to purchase 2 shirts and 3 pairs of pants with his gift
mylen [45]
  • The domain of this relationship can be defined as,

0 ≤ x ≤ 60

  • The range of this relationship can be defined as,

0 ≤ y ≤ 40

Definition of Domain and Range

The set of  all the possible input values for which the provided function is defined is termed as the domain of that function.

The set of all the possible values that a given function can generate as an output is termed as the range of that function.

Forming the Relation

It is given that,

  • Jackson wants to purchase 2 shirts and 3 pairs of pants with his gift card
  • x represents the cost of the shirts and y represents the cost of the pants
  • The limit of the gift card = $120

Thus, the relation formed is given by,

2x + 3y \leq  120

Domain and Range of the Given Relation

We have,

2x + 3y \leq  120

⇒ 2x \leq 120

⇒ x\leq60

Thus, the domain is given by,

⇒ 0\leq x\leq 60

Similarly,

3y\leq 120

⇒ y\leq 40

Thus, the range is given by,

⇒ 0\leq y\leq 40

Learn more about domain and range here:

brainly.com/question/1632425

#SPJ4

7 0
2 years ago
Which is an x-intercept of the continuous function in the table?(0, –6)(3, 0)(–6, 0)(0, 3)
Neporo4naja [7]

Answer:

B. (3,0)

Step-by-step explanation:

The x-intercept is the point where the graph of the function meets the x-axis.

At x-intercept, <u>y = 0 or f(x) = 0</u>

So look through the table and find where <u>f(x) = 0.</u>

From the table, <u>f(x) = 0 at x = 3.</u>

We write this as an ordered pair.

Therefore the x-intercept is <u>(3,0)</u>

The correct choice is <u>B</u>.

6 0
3 years ago
Dana saved 450 for food for her upcoming vacation. The breakfast was included with their hotel, but lunch and dinner are not. Wh
zzz [600]

Answer:

10d + 40r \leq 450

Step-by-step explanation:

Given

Savings = 450

Dana\ Cooks, d = 10

Restaurant, r = 40

Required

Represent this as an inequality

When Dana cooks;

Cost\ per\ meal = 10

Cost\ per\ d\ meals = d * 10

Cost\ per\ d\ meals = 10d

At Restaurant

Cost\ per\ meal = 40

Cost\ per\ r\ meals = 40 * r

Cost\ per\ r\ meals = 40 r

Add these two results:

Result = 10d + 40r

<em>To represent as an inequality, the above result must be less than or equal to Dana's total savings</em>

i.e.

10d + 40r \leq 450

3 0
3 years ago
Sally owns a souvenir shop that is open 5 days a week. One week she sold about 150 T-shirts. Which of the following sets of numb
Reptile [31]
Sally is a bit ugly
4 0
3 years ago
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