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SSSSS [86.1K]
3 years ago
5

2/5 + r = 1 and 4/5 What is r?

Mathematics
1 answer:
MariettaO [177]3 years ago
7 0
Answer- r= 7\5 hope this helps!!
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2,000<br> 10,000<br> milligrams<br> grams<br> 6<br> 7<br> HELPPPPPPPPP
denpristay [2]

Answer:

2000 milligrams —> 2 grams

6000 milligrams —> 6 grams

7000 milligrams —> 7 grams

10000 milligrams —> 10 grams

I hope I helped you^_^

5 0
3 years ago
How to subtract radians?
Dafna1 [17]
You first need to make sure the denominators are equal, then when they are, you can add/subtract the numerators. Then you can place the result over the common denominator.

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4 0
3 years ago
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What is the value of x?
kozerog [31]

Answer:

x = 35

Step-by-step explanation:

Since they are vertical angles, the angles are congruent and therefore you can set them equal to each other.

4x + 20 = 3x + 55

Have x on one side of the equation by subtracting 3x from both sides.

x + 20 = 55

Subtract 20 from both sides of the equation.

x = 35

4 0
3 years ago
a certain number of yams is sufficient to feed 20 students for 12 days for how many days would the same number of yams feed 15 s
Softa [21]

Step-by-step explanation:

no of days = (15×12)/20= 9 days

I hope this helps

6 0
2 years ago
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Find the x-intercept(s) of y = 2x2 - 3x - 5.<br> A) -5 <br> B) 2 1/2, -1<br> C) 3, -5 <br> D) 5, -1
Alexus [3.1K]

Answer:

\large\boxed{B)\ 2\frac{1}{2},\ -1}

Step-by-step explanation:

x-intercepts are for y = 0.

We have the equation:

y=2x^2-3x-5

Therefore

2x^2-3x-5=0\\\\2x^2+2x-5x-5=0\\\\2x(x+1)-5(x+1)=0\\\\(x+1)(2x-5)+0\iff x+1=0\ \vee\ 2x-5=0\\\\x+1=0\qquad\text{subtract 1 from both sides}\\\boxed{x=-1}\\\\2x-5=0\qquad\text{add 5 to both sides}\\2x=5\qquad\text{divide both sides by 2}\\\boxed{x=2\frac{1}{2}}

7 0
3 years ago
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