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Harrizon [31]
3 years ago
9

What is the value of 6.3-(2 - 1.1)•4

Mathematics
2 answers:
Lemur [1.5K]3 years ago
8 0

Answer: 2.7

Use PEMDAS method.

postnew [5]3 years ago
5 0

Answer:

2.7

Step-by-step explanation:

Using PEMDAS you do 2-1.1 first which is is 0.9 then you multiply it by 4 you get 3.6 and then you subtract that by 6.3 and you get 2.7

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You oversee the community garden. You have 3 teams who want plots in your garden, and all gardens are in the shape of a square.
Tems11 [23]

Answer:

a. Please find attached the dimensions for the outline of the garden with the three plots inserted

b.) Team A: 6 m

Team B: 8 m

Team C: 7 m

Step-by-step explanation:

The size of the plot Team A wants = 36 square meters

The size of the plot Team B wants = 64 square meters

The size of the plot Team C wants = 49 square meters

a. The outline of the garden is attached

b.) The dimensions of each side of the needed plot of land by the three teams

For team A we have;

The shape of the needed plot of land = Square

The size of the needed plot of land = 36 m²

The dimension of each side of the needed plot of land = 6 m

The dimensions of each side of the needed plot of land for team A = 6 m

For team B we have;

The shape of the needed plot of land = Square

The size of the needed plot of land = 64 m²

The dimensions of each side of the needed plot of land = 8 m

The dimensions of each side of the needed plot of land for team B= 8 m

For team C we have;

The shape of the needed plot of land = Square

The dimensions of the needed plot of land = 49 m²

The dimensions of each side of the needed plot of land for team C= 7 m

c.) The minimum dimension of the garden plot are;

Length: 15 m

Width: 13 m

8 0
4 years ago
there are 150 students in the marching band, and 30 of them play the trumpet. Which number line represents the percent of the sr
shepuryov [24]

Answer:

30 is 20% of 150 i.e. 20% of total 150 students in the marching bank play the trumpet.

Step-by-step explanation:

Draw two number lines:

  1. One number line to represent number of students from 0 to 150. For convenience, divide the number line into intervals of 15 so that 30 is also present on the line.
  2. Second number line to represent percentage and divide it in intervals from 1 to 100.

Now, place the other number line just below the other number line and draw a vertical line as shown the attached figure.

We find out that 30 is at 20% of 150.

It means that 20% (30 of total 150) of total 150 students in the marching band, play trumpet.

3 0
3 years ago
Your friend attempted to factor an expression as shown. Find the error in your friends work. Then factor the expression correctl
loris [4]

Answer:

Third step is incorrect. The correct factored form is (x-1)(2x-5).

Step-by-step explanation:

The given expression is

2x^2-7x+5

We need to find the factored form of this expression.

Step 1: Given

2x^2-7x+5

Step 2: Splitting the middle term method, the middle term can be written as (-5x-2x).

2x^2-5x-2x+5

(2x^2-5x)+(-2x+5)

Step 3: Taking out common factors from each parenthesis.

x(2x-5)-1(2x-5)

Step 4: Taking out common factors.

(x-1)(2x-5)

Therefore, the third step is incorrect. The correct factored form is (x-1)(2x-5).

3 0
3 years ago
A kid spent $100.00 to get 100 toy animals. The child bought at least one cat, one fish, and one bird, and did not buy any other
Rama09 [41]

Answer:

5 cats, 1 fish and 94 birds

Step-by-step explanation:

Let

  • c be the number of cats;
  • b be the number of birds;
  • f be the number of fish.

A kid bought 100 toy animals, then

c+b+f=100

If a cat costs $10.00, then c cats cost $10c.

If a fish costs $3.00, then f fish cost $3f.

If a bird costs $0.50, then b birds cost $0.5b.

In total,

10c+3f+0.5b=100

We get the system of two equations:

\left\{\begin{array}{l}c+b+f=100\\10c+3f+0.5b=100\end{array}\right.

From the first equation:

b=100-c-f

Substitute it into the second equation:

10c+3f+0.5(100-c-f)=100\\ \\10c+3f+50-0.5c-0.5f=100\\ \\9.5c+2.5f=50\\ \\95c+25f=500\\ \\19c+5f=100\\ \\f=20-\dfrac{19}{5}c

Number f must be a whole number greater than 0, so

20-\dfrac{19}{5}c>0\\ \\c

Number c must be a multiple of 5, thus the only possible value for c is 5.

When c = 5, then

f=20-5\cdot \dfrac{19}{5}=20-19=1\\ \\b=100-5-1=94

8 0
4 years ago
Evaluate the following polynomial. (32mn2 + 50m2n) - (10mn2 - 16m2n + 64).
zaharov [31]
I think the answer is 22mn2+66m2n-64 since there are no more like terms
7 0
4 years ago
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