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kompoz [17]
3 years ago
12

Can someone help me please

Mathematics
2 answers:
olchik [2.2K]3 years ago
8 0
Perimeter: 45ft
Area: 24cm^2

Hope this helped!! :) xxoo Have a nice day!
sergij07 [2.7K]3 years ago
5 0

Answer:

8. B

9. B

Step-by-step explanation:

add all sides to get perimeter

multiply sections of the area to get area (length times width)

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If dave buys a sample of 70 nails and 6 are bad and 64 are good and he needs 2500 good nails how many nails should dave buy
dexar [7]

Answer:

Dave\ should\ buy\ 2735\ nails.

Step-by-step explanation:

Number\ of\ nails=70\\\\Good\ nails=64\\\\percentage\ of\ good\ nails=\frac{good\ nails}{total\ nails}\times 100\\\\percentage\ of\ good\ nails=\frac{64}{70}\times 100\\\\percentage\ of\ good\ nails=91.42857\%\\\\Let\ for\ 2500\ good\ nails\ he\ has\ to\ buy\ x\ nails\\\\91.42857\%\ of\ x=2500\\\\\frac{91.42857}{100}\times x=2500\\\\x=\frac{2500}{0.9142857}=2734.375\\\\x\approx 2735

5 0
3 years ago
6,000 dollars is invested in two different accounts earning 3% and 5% interest. At the end of one year, the two accounts earned
kap26 [50]

Answer:

$2000

Step-by-step explanation:

6,000 dollars is invested in two different accounts earning 3% and 5% interest.

Let x be the amount invested in account earning 3% interest

So, 6000-x is the amount invested in account earning 5% interest

S.I. =\frac{P\times R\times T}{100}

So, Simple interest for account earning 3% interest

S.I. =\frac{x \times 3 \times 1}{100}

S.I. =0.03x

Simple interest for account earning 5% interest

S.I. =\frac{(6000-x) \times 5 \times 1}{100}

S.I. =0.05(6000-x)

S.I. =300-0.05x

Since we are given that the two accounts earned $220 in interest

So, 0.03x+300-0.05x=220

−0.02x+300=220

80=0.02x

\frac{80}{0.02}=x

4000=x

So, 4000 was invested at 3%

(6000-x)=6000-4000=2000 was invested at 5%

Hence 2000 was invested at 5%

8 0
3 years ago
1. Walmart’s stock price started at $70. It went up by $2, then went down by $4. What is the final stock price?
Paul [167]

Answer:

68

Step-by-step explanation:

70+2-4= 68

3 0
3 years ago
If angle 1= 105°, angle 12= (3x + 15)°, and angle 7 = (8y-5)°, determine the values<br> of x and y.
Darina [25.2K]

The value of the variable x is 30° and the value of the variable y is 10°.

The missing diagram is attached below.

<h3>What is an angle?</h3>

The angle is the distance between the intersecting lines or surfaces.

Corresponding angle – If two lines are parallel, then the third line. The corresponding angles are equal angles.

Vertically opposite angle – When two lines intersect, then their opposite angles are equal.

Linear angle – If the total of two angles is 180 degrees, they are said to be linear angles.

∠1 = ∠5 = ∠9 = 105° (corresponding angles)

∠1 = ∠4 = 105° (Vertical opposite angles)

∠1 + ∠2 = 180° (linear angle)

       ∠2 = 75°

∠2 = ∠3 = 75° (Vertical opposite angles)

∠3 = ∠8 = ∠12 = 75° (corresponding angles)

If angle ∠1 = 105°, angle ∠12 = (3x + 15)°, and angle ∠7 = (8y-5)°.

Then the value of x and y will be

   ∠9 = ∠12

   ∠1 = ∠12

105° = (3x + 15)°

  3x = 90°

    x = 30°

∠6 = ∠7

75° = (8y – 5)°

8y = 80°

  y = 10°

More about the angled link is given below.

brainly.com/question/15767203

#SPJ1

7 0
2 years ago
Steve has 30 wooden blocks and wants to make a 4 by 4 house with a large chest and a bead will he have enought wood and will his
ratelena [41]

Answer:

4 blocks up

Step-by-step explanation:

4 0
3 years ago
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