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andreyandreev [35.5K]
3 years ago
10

Solve for the unknown variable in the following equation: 2a = 4.6

Mathematics
2 answers:
andrey2020 [161]3 years ago
5 0

Answer: a= 2.3

Step-by-step explanation:

lina2011 [118]3 years ago
3 0
2a=4.6
2a/2 = 4.6/2
a = 2.3
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Work out<br> 2/5<br> of 60<br> Pls work this out. It’s urgent!
xxTIMURxx [149]
Answer is 24.

firsty remember OF= MULTIPLY

NOW we can calculate this easily

here the equation is given

2/5×60. u can solve this in given ways below….…..

1……….

u can simply divided 60 by 5. which is equal to 12. and now the equation remain 2×12 . & it's equal to 24. which is our answer.

2……….

u can write 2/5 in decimals by dividing this . so 2/5 is equal to 0.4

and now u r left with 0.4×60

so after multiplying it comes 24.0

and that is equal to 24. (because after decimal zeros has no value)

3……….

and u also can multiply 2 by 60 . it occurs 120 then devide it by 5 . the answer comes 24.
5 0
3 years ago
A plane intersects the center of a sphere with a volume of about 113.1 m3. What is the area of the cross section? Round to the n
ivolga24 [154]

Answer:

Step-by-step explanation:

if ~radius=r \\volume =\frac{4}{3} \pi r^3\\113.1=\frac{4}{3} \pi r^3\\113.1 \times \frac{3}{4 \pi } =r^3\\\frac{339.3 }{4 \times 3.14} =r^3\\r^3=\frac{339.3}{12.56} \approx 27\\r=3\\area =\pi r^2=\pi *3^2=9\pi =9*3.14=28.26 \approx 28.3 ~m^2

5 0
4 years ago
PLEASE HELP ME YALL i’m not bout to fail this test bruh
soldier1979 [14.2K]
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5 0
3 years ago
Read 2 more answers
Trey believes there is a correlation between the number of texts sent during class and GPA. He collected data and found that the
vichka [17]

Answer: First Option

The slope is −0.4. Starting at 3.8, the GPA will decrease by 0.4 for every text sent in class.

Step-by-step explanation:

The equation of a line has the following form

y=mx+b

Where m is the slope of the line and b is the intercept with the axis of the y

In this case, the equation is:

y = 3.8 - 0.4x\\\\y=-0.4x+3.8

Observe that

m = -0.4\\b = 3.8

So if x represents the number of texts sent during classes, this means that x\geq 0

When x increases by one unit then y decreases -0.4. For example when x=1 then y=3.8-0.4=3.4

Then the greatest value it can take the GPA is 3.8. Therefore we can say that the function starts at y = 3.8.

The answer is the first option

5 0
3 years ago
Read 2 more answers
Tony wants to estimate the number of bees in a beehive. He catches 100 bees from the hive and marks each one with a dye. He then
fredd [130]

Answer:

Number of total bees = 400

Step-by-step explanation:

He catches 100 bees from the hive and marks each one with a dye.

He later catches 60 and 15 were marked with the dye.

Its very to estimate from the data given.

I'll answer it with ratio.

We'll ratio number of bees with dye to total he caught the second day.

I.e 15:60 = 1:4

We'll multiply this ratio with the number he caught the first day to know the total.

1/4x =100

X = 100*4

X= 400

Where x is the total number of bees in the bee hive.

4 0
3 years ago
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