Ask question

Ask question

All categories

1 year ago

7

R,u,t,s are positive RXS=15 SXT=3 TXV=7 RXV=??

1 answer:

SSSSS [86.1K]1 year ago

4 0

Answer:

35

Step-by-step explanation:

R × S = 15 could be 5 × 3 = 15, 3 × 5 = 15

15 × 1 = 15, 1 × 15 = 15

S ×T =3 From our previous step we can see that S could be 1 or 3 or 5 or 15.

Given that S×T =3, will make sense that S is 1 or 3

If S is 1 then T is 3 and if S is 3 then T is 1, so multiplied will give 3.

T×V=7 From previous step we see that T could be 1 or 3.

Since T×V = 7 it will make sense that T is 1, and therefore V is 7.

T ×V = 7, S ×T =3, R × S = 15, R × V = ??

1 × 7 = 7, S ×1 = 3, R × 3 = 15, 5 × 7 = ??

3 ×1 = 3, 5 × 3 = 15, 5 × 7 = 35

You might be interested in

PLEASSS HELP!!!!!!! I REALLY NEED HELP!!

loris [4]

Answer:

$\underline{ \boxed{x = 11} } \\ \underline{ \boxed{ABE = 55}}$

Step-by-step explanation:

$if \: the \: question \: is \to \\ \overline{AZ} \: \perp \: \overline{CD}, \: m \angle{ABE} = 5x, \\ and \\ \: m \angle{EBD } = 3x + 2\\ but \: m \angle{EBD } + m \angle{ABE} = 90 \\ hence \to \\ (3x + 2) + (5x) = 90 \\ 8x + 2 = 90 \\ 8x = 90 - 2 \\ 8x = 88 \\ x = \frac{88}{8} \\ \boxed{ x = 11} \\ \\ if \: x = 11, \: then \to \\ m \angle{ABE} = \: 5x = 5(11) \\ \boxed{m\angle{ABE} =55}$

6 0

2 years ago

Calculate the length of the circumference of a circle with diameter of 7cm (1dp)

AysviL [449]

22.0. diameter times pie to get your answer then round to 1dp

7 0

2 years ago

The value of a computer depreciates with age, as shown in the table. Value of a Computer Which function represents the value of

frosja888 [35]

Answer:

f(t) = 1,600(0.8)t

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Element X is a radioactive isotope such that its mass decreases by 26% every day. If an experiment starts out with 810 grams of

ioda

Answer:

The hourly decay rate is of 1.25%, so the hourly rate of change is of -1.25%.

The function to represent the mass of the sample after t days is $A(t) = 810(0.74)^t$

Step-by-step explanation:

Exponential equation of decay:

The exponential equation for the amount of a substance is given by:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial amount and r is the decay rate, as a decimal.

Hourly rate of change:

Decreases 26% by day. A day has 24 hours. This means that $A(24) = (1-0.26)A(0) = 0.74A(0)$ ; We use this to find r.

$A(t) = A(0)(1-r)^t$

$0.74A(0) = A(0)(1-r)^{24}$

$(1-r)^{24} = 0.74$

$\sqrt[24]{(1-r)^{24}} = \sqrt[24]{0.74}$

$1 - r = (0.74)^{\frac{1}{24}}$

$1 - r = 0.9875$

$r = 1 - 0.9875 = 0.0125$

The hourly decay rate is of 1.25%, so the hourly rate of change is of -1.25%.

Starts out with 810 grams of Element X

This means that $A(0) = 810$

Element X is a radioactive isotope such that its mass decreases by 26% every day.

This means that we use, for this equation, r = 0.26.

The equation is:

$A(t) = A(0)(1-r)^t$

$A(t) = 810(1 - 0.26)^t$

$A(t) = 810(0.74)^t$

The function to represent the mass of the sample after t days is $A(t) = 810(0.74)^t$

5 0

2 years ago

What is the probability of tossing a coin and getting a head 4 times in a row?

alexira [117]

Answer:

D

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers