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deff fn [24]
3 years ago
9

Is 15 over 50 equivalent to 0.3

Mathematics
2 answers:
alexdok [17]3 years ago
6 0
Yes,\ because\\\\\frac{15}{50}=\frac{15:5}{50:5}=\frac{3}{10}=\boxed{0.3}
dsp733 years ago
3 0
\dfrac{15}{50}=\dfrac{3}{10}=0.3

YES
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Which equation has a solution of n = 4?
Allushta [10]

Answer:

D. 7n = 28

Step-by-step explanation:

Let's substitute 4 for n in each equation to check if it the resulting equation is correct:

6+n=24\\ 6+4=24\\ 10\neq 24\rightarrow \text{Incorrect!}

5n=54\\5(4)=54\\20\neq54\rightarrow\text{Incorrect!}

12-n=16\\12-4=16\\8\neq16\rightarrow\text{Incorrect!}

7n=28\\7(4)=28\\28=28\rightarrow\text{Correct!}

Therefore the answer is D

4 0
2 years ago
Read 2 more answers
If 4x - 8 = 4 , find the value of x​
Wittaler [7]

Answer:

x=3

Step-by-step explanation:

4x-8=4

4x=12

4x/4=12/4

x=3

3 0
4 years ago
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Give the algebraic expression by using variables and constant and arithmetic operations: i. Sum of the squares of x and y. ii.Pr
Olenka [21]

Answer:

a) x^2 + y^2

b) 9-xy

Step-by-step explanation:

Here, we want to write the algebraic statements as expressions;

a) The sum of the squares of x and y

The square of x is x^2

The square of y is y^2

The sum of the squares is x^2 + y^2

ii) Product of x and y subtracted from 9

The product of x and y is x * y = xy

Subtracting these from 9, we have;

9-xy

5 0
3 years ago
The sum of two integers is -15. The product of the two integers is 54. What are those two integers a. -6 and -9 b. -6 and 9 c. 6
Bas_tet [7]
Let the two integers be x and y respectively

Hence;
x + y =  - 15 \\  \\ xy = 54
From the first equation ;
x =  - 15- y
Substitute into the third equation
( - 15 - y)y = 54
Open up the bracket
- 15y -  {y}^{2}  = 54
Take everything to the right hand side of the equation and you'll have a quadratic equation
0 = 54 + 15y +  {y}^{2}
Solve the quadratic equation and you'll have two roots
y=  - 6 \: or \: y= -9
Substitute for each value of y in the first equation
Therefore:
x  + ( - 6) =  - 15 \:  \\ or \\  \: x + ( - 9) =  - 15
x - 6 =  - 15 \\ or \\ x - 9 =  - 15
x =  - 15 + 6 \\ or \\ x =  - 15 + 9

x =  - 9 \: or \: x =  - 6
Therefore the answer is A
3 0
4 years ago
What is the discriminant<br> of the equation<br> 3x2-7x+6=0<br> Help guys :(
Elenna [48]
The formula for a discriminant is b^2-4ac
so, (-7)^2 -4(3)(6) simplifies to 49-72 which equals -23
4 0
3 years ago
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