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3 years ago

13

Suppose 7x+14 ice cream cones were sold on Saturday and 6x-8 were sold on sunday what is the total number of ice cream cones sol

d

1 answer:

kirill115 [55]3 years ago

6 0

Answer: 13x + 6

Step-by-step explanation:

(7x + 14) + (6x - 8)

14 + - 8 = 6

7x + 6x = 13x

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In the DBE 122 class, there are 350 possible points. These points come from 5 homework sets that are worth 10 points each and 3

Sliva [168]

Answer:

i) it is not possible for the student to receive an A in the class

ii) 119 points

iii) 84points

Step-by-step explanation:

Total exam scores = 350points

homework scores of 7, 8, 7, 5, and 8

Let the third exam score =y

Exam scores = 81, 80, x

i) To know if the student would get an A in class, we would find the third exam score

(Scores received by a student)/ (total scores) = least of the grade percentage to get an A

(7 + 8 + 7 +5 + 8 + 81 + 80 + x)/350 = 0.9

(196+x)/350 = 0.9

196+x = 350 × 0.9

196+x = 315

x = 315-196

x = 119

119 > 100

Since the maximum grade for each of the exam score is 100points, it is not possible for the student to receive an A in the class.

ii) Since the least of the grade percentage that would guarantee an A is 0.9, the minimum score on the third exam that will give an A = 119points

iii) (Scores received by a student)/ (total scores) = least of the grade percentage to get a B

(7 + 8 + 7 +5 + 8 + 81 + 80 + x)/350 = 0.8

(196+x)/350 = 0.8

196+x = 350 × 0.8 = 280

x = 280-196

x = 84

The minimum score on the third exam that will give a B = 84points

3 0

3 years ago

Stacey is making a trail mix for the school field trip. The recipe shows the amount of each ingredient needed to make 6 bags. If

solmaris [256]

That she needs to follow the recipe to make some good trail mix for her friends!!!!

3 0

3 years ago

Read 2 more answers

The distance between two cities on a map is 5.5 centimeters. The map uses a scale in which 1 centimeter represents 15 kilometers

sertanlavr [38]

Answer:

82.5 kilometers

Step-by-step explanation:

15×5.5= 82.5 kilometers

7 0

3 years ago

Find thr valuse of x, rounded to the nearest tenth.<br><br>3.8<br>4<br>2.7<br>2.9

irina1246 [14]

Answer: 4 (OPTION 2)

Step-by-step explanation:

1. To solve this problem you must apply the Intersecting secants theorem, as you can see below:

$(A+B)B=(C+D)D$

Where:

$(A+B)=6$

$B=x\\(C+D)=8\\D=2$

2. Then you must susbstitute values and solve for x, as following:

$6x=24\\x=24/6\\x=4$

Therefore the answer is the second option.

3 0

3 years ago

Read 2 more answers

Light travels at a speed of 1.17 × 107 miles per minute. Pluto's average distance from the Sun is 3,670,000,000 miles. On averag

Oksana_A [137]

Answer:

<em>It will take </em><em>5 hours 8 minute.</em>

Step-by-step explanation:

Speed of light is $1.17\times 10^7$ miles/min

Distance between the Pluto and the Sun is $3,670,000,000=3.6\times 10^9$ miles.

We know that,

$\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}$

i.e $\text{Time}=\dfrac{\text{Distance}}{\text{Speed}}$

Putting the values,

$\text{Time}=\dfrac{3.6\times 10^9}{1.17\times 10^7}=308\ min=5\ hr\ 8\ min$

7 0

3 years ago