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Ivanshal [37]
4 years ago
11

Miss Penny inherits £910.

Mathematics
2 answers:
goldenfox [79]4 years ago
8 0
Saving is 490 and spending is 420
FinnZ [79.3K]4 years ago
7 0

Answer:

Sacing 490 spending 420

Step-by-step explanation:

If a is a fraction

Saving 7a Spending 6a

7a + 6a = 910

13a = 910

a = 910/13

a = 70

Saving 7×70 = 490

Spending 6×70 = 420

The sum is 490 + 420 is equal to 910

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Montano1993 [528]

C: none of these are solutions to the given equation.

• If<em> y(x)</em> = <em>e</em>², then <em>y</em> is constant and <em>y'</em> = 0. Then <em>y'</em> - <em>y</em> = -<em>e</em>² ≠ 0.

• If <em>y(x)</em> = <em>x</em>, then <em>y'</em> = 1, but <em>y'</em> - <em>y</em> = 1 - <em>x</em> ≠ 0.

The actual solution is easy to find, since this equation is separable.

<em>y'</em> - <em>y</em> = 0

d<em>y</em>/d<em>x</em> = <em>y</em>

d<em>y</em>/<em>y</em> = d<em>x</em>

∫ d<em>y</em>/<em>y</em> = ∫ d<em>x</em>

ln|<em>y</em>| = <em>x</em> + <em>C</em>

<em>y</em> = exp(<em>x</em> + <em>C </em>)

<em>y</em> = <em>C</em> exp(<em>x</em>) = <em>C</em> <em>eˣ</em>

8 0
3 years ago
PLLSSSSSSS ASAP ANSWER BRAINLIEST
Kisachek [45]

Answer:

Table C

Step-by-step explanation:

To find the constant of proportionality, you need to divide y by x

Table A has a constant of proportionality of \frac{1}{3} <em>which is 0.3333 repeating</em>

Table B has a constant of proportionality of \frac{3}{5} <em>which is 0.6</em>

Table C has a constant of proportionality of \frac{3}{10}<em> which is 0.3</em>

7 0
3 years ago
A large mixing tank currently contains 225 225 gallons of water, into which 5 5 pounds of sugar have been mixed. A tap will open
kkurt [141]

Answer: Hello mate!

you put every number twice, I will consider that in this problem we have:

225 gallons of water initial with 5 pounds of sugar. then each minute you add 20 gallons of water and 4 pounds of sugar.

the concentration is defined as pounds of sugar divided by the gallons of water. The gallons of water are 225 initially and 20 per minute, this is written as 225 + 20tt, where t is the minutes. The pounds of sugar is 5 + 4 per minute, then this can be written as 5 + 4t

C(t) = \frac{5 + 4t}{225 + 20t}

this is the equation that describes the concentration in pounder per gallon after t minutes.

4 0
3 years ago
The formula P=nc-e gives the profit p when a number of items n are each sold at a cost c and expenses e are subtracted. If p=570
m_a_m_a [10]


1.65

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add 900 to both sides and you get

6600 = 4000c

divide both sides by 4000 and you get

1.65 = c

so the answer is 1.65

5 0
4 years ago
A total of 17,100 seats are still available for the next hockey game. If 62% of the tickets are sold, how many seats are in the
slava [35]
The answer to the equation is 10602
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3 years ago
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