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kogti [31]
3 years ago
14

Mrs. Morales wrote a test with 16 questions covering spelling and vocabulary. Spelling questions (x) are

Mathematics
1 answer:
fiasKO [112]3 years ago
8 0

Answer:

<h3>5x+10y=100</h3>

Step-by-step explanation:

X+Y = 15

<h3>Sum of two types of question is 15</h3>

x+y-x = -x+15

<h3>y= -x+15</h3>

5(x)+10(y)=100

5x+10y=100

<h3>Total no. if points is 100</h3>

5x+10y-5x=-5x+100

10y= -5x+100

y=5/10x + 100/10

y= -1/2x+10

<h3>Slope intercept form</h3>

(10,5)

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1. 27 marbles are shared between some children. Each child recieves six marbles and there are three marbles left over. How many
vova2212 [387]
1. 27 - 3 (because 3 are left over) = 24. Then, 24 ÷ 6 = 4 children. 

2. If Mina has £7.20, that means she has 720 pence. If half is given to her brother, then she has £3.60 left. (720 ÷ 2 = 360 pence, which is £3.60) 

3. 17 × 10 = 170
2 × 20 = 40
170 + 40 = 210, which is £2.10 

5 0
3 years ago
Max is stacking logs at his campground for firewood. After his first load of logs, he has 9 logs on the stack. After his seventh
sleet_krkn [62]

Answer:

D an = 9 + 7(n-1)

Step-by-step explanation:

In the question, Max has 9 logs in the first load. But, after the seventh load he has a total of 51 logs. So the n would be your logs in the stack, which is 51. And since there is a total of 51 logs after the seventh load. It would be 9 plus 7 in parenthesis of  51 minus one, which is 50. So 50 times 7 comes down to 350 plus nine which comes down to a total of 359.

8 0
4 years ago
Read 2 more answers
Find the volume of 20m, 5m, 18m
HACTEHA [7]

Answer:

600 m³

Step-by-step explanation:

The shape we have is a rectangular pyramid:

Formula:<u><em> (volume of a rectangular pyramid)</em></u>

Volume = (1/3) × Base Area × height

___________________________

In our case :

Base area = L × W = 20 × 18 = 360 m²

height = 5 m

⇒ Volume = (1/3) × Base Area × height

    \Longrightarrow \text{volume} \  =\  \frac{1}{3} \times 360\times 5

\Longrightarrow \  \text{volume} \  =\  600\  m^{3}

7 0
2 years ago
Is 28/81 less than 7/9.Is 28/81 less than 4/9?
lesantik [10]
28/81 is less than 7/9

28/81 is less than 4/9

The common denominator is 81, so you say 9 can go into 81 nine times, so you multiply 9 by the numerator, so 7/9 is now 63/81 an 4/9 is now 36/81
8 0
3 years ago
100 POINTS!!!!!!!
Fed [463]

Answer:

a,b,c

Step-by-step explanation:

divide first

5 0
3 years ago
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