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mariarad [96]
3 years ago
9

A company is supplying three dimensional projectors in the school for grade 5 students for interactive learning amongst the stud

ents. The school can shell out $ 3,500 for the projectors and each projector costs $ 70 . The number of projectors the school can purchase are
Mathematics
1 answer:
solmaris [256]3 years ago
7 0

Answer:

50

Step-by-step explanation:

3,500 divided by 70 = 50

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amy bill and cara each played a game . amy’s scored was ten times bill’s scored . cara’s down the ratio of amy’s scored to bill’
Oksi-84 [34.3K]

Answer:

10:1:5

Step-by-step explanation:

Given that,

A game was played by Amy, Bill, and Cara.

Let Amy's score be x. Then,

Bill's score would be x/10

Cara's score = x/2

Now,

The ratio of their scores;

x: x/10: x/2

= 1 : 1/10 : 1/2

To equalize the scores, multiply all of them by 10

= (1 * 10): (1/10 * 10) : (1/2 * 10)

= 10 : 1 : 5

Thus, the simplest ratio form would be 10:1:5

4 0
3 years ago
At a school, 460 of the students walk to school. The number of students who ride the school bus is 110% of the number of student
Alexandra [31]

Answer: 506 students

Step-by-step explanation:

5 0
4 years ago
g 7. Find Re f and Im f and find their values at the given z. (Both answers should be included) f = z⁄(z + 1), z = 4 − 5
Schach [20]

Answer:

The real and imaginary parts of the result are \frac{1441}{1601} and \frac{4}{1601}, respectively.

Step-by-step explanation:

Let be f(z) = \frac{z}{z+1}, the following expression is expanded by algebraic means:

f(z) = \frac{z\cdot (z-1)}{(z+1)\cdot (z-1)}

f(z) = \frac{z^{2}-z}{z^{2}-1}

f(z) = \frac{z^{2}}{z^{2}-1}-\frac{z}{z^{2}-1}

If z = 4 - i5, then:

z^{2} = (4-i5)\cdot (4-i5)

z^{2} = 16-i20-i20-(-1)\cdot (25)

z^{2} = 41 - i40

Then, the variable is substituted in the equation and simplified:

f(z) = \frac{41-i40}{41-i39} -\frac{4-i5}{41-i39}

f(z) = \frac{37-i35}{41-i39}

f(z) = \frac{(37-i35)\cdot (41+i39)}{(41-i39)\cdot (41+i39)}

f(z) = \frac{1517-i1435+i1443+1365}{3202}

f(z) = \frac{2882+i8}{3202}

f(z) = \frac{1441}{1601} + i\frac{4}{1601}

The real and imaginary parts of the result are \frac{1441}{1601} and \frac{4}{1601}, respectively.

8 0
3 years ago
WILL GIVE A BRAINLEST!!!!!!!!!!
Anna007 [38]
The second option


hope this helps<3
5 0
3 years ago
Read 2 more answers
Shaneeka is saving $5.75 of her allowance each week to buy a new camera that costs $51.75. How many weeks will she have to save
nika2105 [10]

Answer:

a. 9 weeks

Step-by-step explanation:

$51.75÷$5.75= 9 weeks

She will have to save 9 weeks to be able to afford the camera.

6 0
4 years ago
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