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3 years ago

To increase an amount by 5.4% what single multiplyer would you use

Mathematics

2 answers:

Fittoniya [83]3 years ago

8 0

You would multiply the amount by 1.54. Hope this helped :3

photoshop1234 [79]3 years ago

4 0

If the multiplier was 1.54, then you would get more then 1 and a half times your original amount.

Do 100% + 5.4% to get 105.4%.
Turn this into a whole number (divide by 100) to get 1.054 as your multiplier.
1.054

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PLZ HELP! A book sold 38,700 copies in its first month of release. Suppose this represents 9.8% of the number of copies sold to

iVinArrow [24]

Answer:

394,898

Step-by-step explanation:

9.8% = 0.098

0.098x = 38700

Divide both sides by 0.098

x = 38700/0.098

x = 394,897.9591836735

Rounding

x = 394,898

6 0

3 years ago

L-

raketka [301]

Answer:

x= 2.468374946 or x= -0.135041612

Step-by-step explanation:

Give each number a term

${3x}^{2} - 7x - 1 = 0 \\ {ax}^{2} + bx + c = 0$

Write out this formula and substitute

$x = \frac{ - b \binom{ + }{ - } \sqrt{ {b}^{2} - 4ac } }{2a} \\ x = \frac{ - ( - 7) \binom{ + }{ - } \sqrt{ {( - 7)}^{2} - 4(3)( - 1)} }{2(3)}$

Expand the brackets

$x = \frac{7 \binom{ + }{ - } \sqrt{41 + 12} }{6} \\ x = \frac{7 \binom{ + }{ - } \sqrt{61} }{6}$

Solve for each

$x = \frac{7 + \sqrt{61} }{6} \\ x = 2.468374946$

$x = \frac{7 - \sqrt{61} }{6} \\ x = - 0.135041612$

5 0

3 years ago

#3 Q. the diagrams solve please

olya-2409 [2.1K]

Its the first one, 22.5. This is because... if you multiply 5 and 4, you would get 20, the area of the square. You then have to multiply 1 and 5 to get 5 and divide it by 2 to get the area of the triangle which would be 2.5, then add 2.5 to 20 and get 22.5.
Hope this helps :)

6 0

4 years ago

Read 2 more answers

If a straight line y = mx + c passes through the intersecting point of 3x - y = 8 and x+ 2y = 5 which is perpendicular to the li

Sindrei [870]

Answer:

Point of intersection:

$3x - y = 8 - - - (a) \\ x + 2y = 5 - - - (b)$

2 × equation(b) + equation (a):

$7x = 21 \\ x = 3 \\ \\ y = 3x - 8 \\ y = 1$

Point of intersection = (3, 1)

Perpendicular line:

$3x + 6y - 11 = 0 \\ 6y = - 3x + 11 \\ y = - \frac{1}{2} x + \frac{11}{6}$

General equation of line:

$y = mx + c \\ 1 = (2 \times 3) + c \\ c = - 5$

Value of m:

$m \times m {}^{i} = - 1 \\ m \times - \frac{1}{2} = - 1 \\ m = 2$

8 0

3 years ago

Sara can complete 3/4 of a puzzle in 7/8 of an hour. How much a puzzle can she complete in an

8090 [49]

Answer:

x = 6/7 of a puzzle

Step-by-step explanation:

Number of puzzle : time taken

= 3/4 : 7/8

How much a puzzle can she complete in an hour?

Let

x = number of puzzle to complete

Number of puzzle : time taken

= x : 1

Equate both ratios to solve for x

3/4 : 7/8 = x : 1

3/4 ÷ 7/8 = x / 1

3/4 × 8/7 = x / 1

24/28 = x / 1

Cross product

24 * 1 = 28 * x

24 = 28x

x = 24/28

= 6/7

x = 6/7 of a puzzle

7 0

3 years ago