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Alex787 [66]
3 years ago
10

HELP PLEASE! a + 2 2/5 = 4 3/10

Mathematics
1 answer:
amm18123 years ago
7 0

Answer:

0

Step-by-step explanation:

4 + 0 = 0

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What is the value of x?<br> Enter<br><br> X :<br><br> (Look at the photo)
Anton [14]

Answer:

x = 20

Step-by-step explanation:

<em>Each line creates a 180° angle on each side of it. Since these lines intersect, they have congruent angles. This means that these two quantities can be set equal to each other.</em>

3x + 50 = 6x - 10

<em>Solve by combining like-terms and isolating </em><em>x</em><em>. Move the </em><em>3x</em><em> to the right by subtracting it from both sides.</em>

50 = 3x - 10

<em>Move the </em><em>10</em><em> to the left by adding it to both sides.</em>

60 = 3x

<em>Divide the </em><em>3</em><em> from both sides to isolate the </em><em>x.</em>

x = 20

<em>Furthermore, this can be checked by plugging in </em><em>20</em><em> to </em><em>x</em><em> and seeing if the expression is true.</em>

3(20) + 50 = 6(20) - 10

110 = 110

8 0
3 years ago
Lenny has 21 green blocks the ratio of green blocks to yellow blocks she owns is 3:1 How many blocks does she own.
Lena [83]

Answer:

28 blocks lol

Step-by-step explanation:

n f,s glrjbgwrfbskjdbfls/bjsdggwr

5 0
3 years ago
5 rate?? my brother doesn't want to helpx me someone help?]'
Luden [163]

Answer:

-5/2 is the reciprocal of -2/5, but the opposite would just be 5/2.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Adam currently runs about 40 miles per week, and he wants to increase his weekly mileage by 30%. How many miles will Adam run pe
BigorU [14]

Answer:

52 miles/week (12 more miles per week)

Step-by-step explanation:

In order to know the miles per week with this increasement, we'll use the rule of 3, assuming that 40 miles is the 100% innitially so:

If:

40 miles --------->100%

X miles ----------> 30%

Solving for X we have the following:

X = 30 * 40 / 100 = 12 miles

So, if Adam wants to increase his weekly mileage by 30%, he needs to run 12 more miles, and that makes a total of 52 miles/week

6 0
3 years ago
F(x) =5x^2-20x+3 how to find minimum
Leya [2.2K]

Answer:

(2,-17) should be the minimum.

Step-by-step explanation:

The minimum of a quadratic function occurs at x=-\frac{b}{2a} . If a is positive, the minimum value of the function is f(-\frac{b}{2a})

f_{min}x=ax^2+bx+c occurs at x=-\frac{b}{2a}

Find the value of x=-\frac{b}{2a}

x = 2

evaluate f(2).

replace the variable x with 2 in the expression.

f(2)=5(2)^2-20(2)+3

simplify the result.

f(2)=5(4)-20(2)+3

f(2)=20-40+3

f(2)=-17

The final answer is -17

Use the x and y values to find where the minimum occurs.

HOPE THIS HELPS!

3 0
3 years ago
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