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3 years ago

How many groups of 3 toys can a child choose to take on a vacation from a toy box containing 11 toys.

Mathematics

2 answers:

olga_2 [115]3 years ago

6 0

I think it will be 4

dsp733 years ago

3 0

Count by three's. 3, 6, 9, 12, oh no! its over 12. how many groups of 3? well we just counted them. 3 groups of 3 can be taken on the trip.
this is a simple way to do your math in this class. count by the number its asking and don't go over the number of the thing it tells you to divide.

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Calculate the scale factor of ABC to DEF. Enter answer as a whole number or as a fraction in lowest terms, using the slash mark

bazaltina [42]

Answer:

Step-by-step explanation:

because 3x3= 9 and 4x3=12 and 5x3=15

5 0

3 years ago

What is the equation of the line that is perpendicular to 3x -6y =2 and contains the point (-2,--5)

julsineya [31]

Answer:

y=-2x-12

Step-by-step explanation:

first, putt 3x-6y=2 in standard form:

subtract 3x from both sides: -6y=-3x+2

divide both sides by -6 to isolate y: y=1/2x-1/3

if the other line is perpendicular to this, you must find the slope by finding the opposite reciprocal of 1/2x: -2

now we have 2 points a slope, so we use the point-slope formula: y-y1=m(x-x1)

y+2=-2(x+5)

Use the distributive property: y+2=-2x-10

subtract 2 for both sides to isolate y: y=-2x-12

5 0

3 years ago

Suppose the relationship between x and y is proportional. When x is 29, y is 275.5. Find the constant of proportionality of y t

ruslelena [56]

If it’s proportional, then when X is 1, y is 2.6, you get that by dividing 275.5 by 29

so when y is 408.5, x is 156.91

I believe that is correct.

3 0

3 years ago

Read 2 more answers

A ladder is leaning against the side of a building and positioned such that the base of the ladder is 17 ft from the base of the

andrezito [222]

Answer:

The ladder is 28.6 feet long.

Step-by-step explanation:

Given that:

Length of base = 17 feet

Length above the ground = 23 feet

These forms two legs of right angled triangle.

The length of ladder will be the hypotenuse.

Using Pythagorean theorem;

$a^2+b^2=c^2\\(17)^2 + (23)^2 = c^2 \\289 + 529 = c^2 \\c^2 = 818$

Taking square root on both sides

$\sqrt{c^2}=\sqrt{818}\\c=28.6$

Hence,

The ladder is 28.6 feet long.

5 0

3 years ago

An angle's supplement is nine times of its complementary angle. Find the measure of the angle, the complement of the angle,and t

Nezavi [6.7K]

S = 9C
first sentence written as an expression
Where S represents the angles supplement
and C represents the angles complement
A + S = 180
definition of supplementary allows me to make this statement Where A is the original angle
A + C = 90
definition of complimentary allows this statement
now add the prior 2 statements together
A + S + A + C = 180 + 90
now simplify
2A + S + C = 270
now replace S with 9C using first statement
2A + 9C + C = 270
now simplify
2A + 10C = 270
now divide both sides by 2
A + 5C = 135
now using the second statement isolate A by adding C to both sides
A = 90 - C
now combine the two prior statements
90 - C + 5C = 135
now simplify
90 + 4C = 135
now subtract 90 from both sides
4C = 45
now divide both sides by 4
C = 11.25
so the complimentary angle is 11.25
now take the third equation and substitute in C
A + 11.25 = 90
now subtract 11.25 from both sides
A = 78.75
so the original angle is 78.75
now use the second equation and substitute in A
78.75 + S = 180
now subtract 78.75 from both sides
S = 101.25
so the suplimentary angle is 101.25

7 0

4 years ago