All categories

3 years ago

Two-thirds a number plus 4 is 7

Mathematics

1 answer:

faltersainse [42]3 years ago

6 0

2/3n (put that as a fraction) + 4 = 7

You might be interested in

A box with a square base and no top is to be made from a square piece of carboard by cutting 4 in. squares from each corner and

Lunna [17]

Answer:

$C=27inch\ by\ 27inch$

Step-by-step explanation:

Squares $h=4inch$

Volume $v=1444in^3$

Generally the equation for Volume of box is mathematically given by

$V=l^2h$

$1444=l^2*4$

$l^2=361$

$l=19in$

Since

Length of cardboard is

$l_c=19+4+4$

$l_c=27in$

Therefore

Dimensions of the piece of cardboard is

$C=27inch\ by\ 27inch$

7 0

2 years ago

If you explain and answer i will give brainly

CaHeK987 [17]

6x - 5y = 3 x1

3x - 8y = -15 x2

===============

6x - 5y = 3

6x - 16y = -30

============= -

11y = 33

y = 3

6x - 5(3) = 3

6x -15 = 3

6x = 18

x = 3

(3,3)

7 0

2 years ago

Please help!!!!!!1 <br><br> 5x+y=23

d1i1m1o1n [39]

Answer:

x=4 y=3

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The equation of a line with slope m= - 1/4 and including point (-3, 5) is y= - 1/4 x - 4.

raketka [301]

Answer:

False

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

here m = - $\frac{1}{4}$ , hence

y = - $\frac{1}{4}$ x + c ← is the partial equation

to find c substitute (- 3, 5) into the partial equation

5 = $\frac{3}{4}$ + c ⇒ c = $\frac{17}{4}$

y = - $\frac{1}{4}$ x + $\frac{17}{4}$ ← equation of line

8 0

3 years ago

You are randomly selecting 3 cans of regular and diet cola, but assume that there are 6 cans of regular cola and 7 cans of diet

gayaneshka [121]

Answer:0.367

Step-by-step explanation:

Given

There are 6 cans of regular and 7 cans of diet cola

number of ways of selecting 2 regular colas and 1 can of diet cola is

$\Rightarrow ^6C_2\times ^7C_1$

The total no of ways of selecting 3 items out of 13 items is

$\Rightarrow ^{13}C_3$

Probability is

$\Rightarrow P=\dfrac{^6C_2\times ^7C_1}{^{13}C_3}=\dfrac{105}{286}\\\Rightarrow P=0.367$

6 0

2 years ago