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Mkey [24]
3 years ago
10

Please I need help with this problem number 5????

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0
Estimating the area:
x = (20 \times 8)(13 \times 8) \\  x = 264
Calculating wallpaper:
x = (264 \times 1.05) \div 35 \\ x = 7.92 \\ x = 8
we round up here because they will need a full roll to complete the room. Since they can't buy 7.92 rolls, they must buy 8.

Calculating cost:
x = 8(31.48) + 31.48(0.0825) \\  x = 254.44

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What is the width of a rectangle with an area of 5/8in2 and a length of 10inches
Aneli [31]
Area = length * width
5/8 = 10 * width
width = (5/8) / 10
width = 1 / 16
width = 0.0625 inches
6 0
3 years ago
You are baking cupcakes for your class. There are 30 total students in your class and you have baked 15 cupcakes. Write and solv
fiasKO [112]

the answer is 75  because 30*3 -15 =75

7 0
3 years ago
Find the slope between the points (0,8) and (4,4)
Oxana [17]

Answer:

Slope=-1

Step-by-step explanation:

Slope=y1-y2/x1-x2

Where (X1,y1)(0,8) and (X2,y2) (4,4)

Slope=8-4/0-4

=4/-4

=-1

So slope is -1

5 0
2 years ago
HELP HELP PLEASE I NEED HELP
dimaraw [331]

Answer:

<h2>FALSE</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • PEMDAS
<h3>tips and formulas:</h3>

order of PEMDAS

  1. parentheses
  2. exponent
  3. multiplication or
  4. division
  5. addition
  6. subtraction
  • left to right
<h3>let's solve:</h3><h2><u>L.</u><u>H.S</u><u>=</u></h2>
  1. <u>\sf simplify  \: divition:  \\  \tt 14 + 33 + 0.4</u>
  2. <u>\sf simplify \: additio n :  \\  \tt 47.4</u>
<h2><u>≠R.H.S</u></h2>

therefore

<h3>the equality is false</h3>

8 0
3 years ago
If a physician order is 25% dextrose 1000 mL and all you have is 70% dextrose 1000 mL and 5% dextrose how much 70% dextrose will
miskamm [114]

Answer:

The answer is below

Step-by-step explanation:

Since 1000ml Of Dextrose 25% is needed to be produced from Dextrose 70%. Let us assume that x ml of Dextrose 70% is mixed with a Dextrose 5% to get 1000 ml of Dextrose 25%. Hence:

The amount of Dextrose 5% = 1000 ml - x ml = 1000 - x

25% of 1000 ml = 70% of x + 5% of (1000 - x)

25000 = 70x + 5000 - 5x

Simplifying gives:

65x = 25000 - 5000

65x = 20000

x = 308 ml

Therefore 308 ml of Dextrose 70% was mixed with 692 ml of Dextrose 5% to produce 1000 ml of Dextrose 25%.

7 0
3 years ago
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