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VladimirAG [237]
3 years ago
15

If herbert builds 17 sandcastles in 4 hours, how many does he build in 20 hours?

Mathematics
2 answers:
julsineya [31]3 years ago
6 0

Answer: its 80

Step-by-step explanation: you just muti

BartSMP [9]3 years ago
5 0

Answer:

85 sand castles

Step-by-step

to get this we need to 20/4 is 5 so we multiply 17 by 5 and get 85 sandcastles

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A boy gets #2.00 per week as pocket money. His sister gets only #1.60 per week
Norma-Jean [14]

The Ratio of the boy's allowance to his sister's is 5 : 4.

The new Ratio is 1 : 10000.

<h3>What is definition of ratio?</h3>
  • The quotient of two mathematical expressions, 1a. b: the proportion between two or more items in terms of quantity, amount, or size.
  • What does the arithmetic term "ratio" mean?
  • An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value.
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To learn more about :Ratio

Ref : brainly.com/question/2328454

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6 0
1 year ago
X plus the letter y equals the number 8
yan [13]
X and y =4? is there more information about the question?
6 0
2 years ago
Read 2 more answers
What type of number has a decimal that does not repeat or end?
galina1969 [7]
A number that has a decimal that does not repeat or end in an irrational number.  The decimal goes on forever, without a pattern.  Think of it as it is irrational to keep going on and on and on.   Irrational numbers also cannot be put into fractions.
-5 is an integer, it is a whole (positive or negative without a decimal/fraction) number.  An integer can be any whole number as long as it is a whole number and does not have a decimal.<span />
4 0
3 years ago
If CDE ~ GDF, find ED
qaws [65]

Answer:

10

Step-by-step explanation:

\triangle CDE \sim \triangle GDF.. (given) \\\\\therefore \frac{CD}{GD} =\frac{DE}{DF}.. (csst) \\\\\therefore  \frac{15}{x+3} =\frac{3x+1}{4}\\\\ \therefore   \: 15 \times 4 = (x + 3)(3x + 1) \\  \\ \therefore   \: 60 = 3 {x}^{2}  + x + 9x + 3 \\  \\ \therefore  3 {x}^{2}  + 10x + 3 - 60 = 0 \\ \therefore  3 {x}^{2}  + 10x  - 57 = 0 \\ \therefore  3 {x}^{2}  + 19x - 9x  - 57 = 0 \\ \therefore   \: x(3x + 19) - 3(3x + 19) = 0 \\\therefore   \:  (3x + 19)(x - 3) = 0 \\ \therefore   \: 3x + 19 = 0 \:  \: or \:  \: x - 3 = 0 \\  \therefore   \: x =  -  \frac{19}{3}  \:  \: or \:  \: x = 3 \\  \because \: x \: can \: not \: be \:  - ve \\ \therefore   \: x = 3 \\ ED = 3x + 1 = 3 \times 3 + 1  \\ \huge \red{ \boxed{ ED= 10}}

7 0
3 years ago
A line that passes through the point (–1, 3) has a slope of 2. Find another point on the line.
sineoko [7]
Easy, find the equation of the line,

Using y=mx+b form:

(-1,3) m=2

3= 2(-1)+b

3= -2+b
+2     +2

5=b

y=2x+5. This is your equation.

Now, plug in the coordinates:

(-3,2)

2= 2(-3)+5
2= -6+5
2= -1

NO

(0,5)

5= 2(0)+5
5=5

YES

(1,5)

5= 2(1)+5
5= 2+5
5=7

NO

(1,4)

4= 2(1)+5
4= 2+5
4=7

NO.

Thus, B, is your answer.


5 0
2 years ago
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