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3 years ago

How to resolve this problem?

Mathematics

1 answer:

Sholpan [36]3 years ago

4 0

Answer:

<h2>Increased by 10.25%</h2>

Step-by-step explanation:

$p\%=\dfrac{p}{100}$

Increased by 5%:

$100\%+5\%=105\%\\\\105\%=\dfrac{105}{100}=1.05\\\\105\%\ of\ x\to1.05x$

Increased again by 5%:

$105\%\ of\ 1.05x\to1.05\cdot1.05x=1.1025x$

$1.1025=1.1025\cdot100\%=110.25\%$

$110.25\%-100\%=10.25\%$

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The Baker formula estimates the maximum heart rate, in beats per minute, of a person who is

seropon [69]

Answer:

For a=16, the Maximum Heart Rate is 188 Beats Per Minute.

Step-by-step explanation:

To begin, we know that the formula:

$b(a)=200-0.75a$ Eqn(1).

is equivalent to a linear equation of algebraic form denoted as:

$y=k+mx$ Eqn(2)

as such that Eqns (1) and (2) relate as follow:

$y$ ⇔ $b(a)$ : denoting our Dependent Variable, in this case Max. Heart Rate in Beats Per Minute

$x$ ⇔ $a$ : is our Independent Variable, in this case the Age of the Person

$m$ ⇔ $0.75$ : denoting the Rate of Change of the Age.

$k$ ⇔ $200$ : denoting our Constant.

Now in the question our value of $b(a)$ is given as 188 beats per minute, which by plugging in Eqn(1) gives:

$200-0.75a=188$

from which we can solve to obtain the value of $a$ as follow:

$-0.75a=188-200$ Gather similar terms on each side

$-0.75a=-12\\$ Simplify

$a=\frac{-12}{-0.75}$ Solve for $a$

$a=16$

Which tells us that at the Age of 16, the Max. Heart Rate is 188 Beats Per Minute.

4 0

3 years ago

Lois says any addition equation where the addends are all the same can be written as a multiplication equation. Is Lois correct

USPshnik [31]

Lois is correct. This is because multiplication is repeated addition. It means that when your addends are just the same number but added several times, the sum is just equivalent to the product of that number times the number of times it was added. For example, 4+4+4 = 4×3 = 12.

6 0

3 years ago

Please help!! If correct, get brainliest!

sashaice [31]

Answer:

a) <DXC and < CXB are complementary angles

b) Supplementary angles

<AXB and <DXB

<AXC and DXC

Step-by-step explanation:

Complementary angles: Two angles are complementary angles if their sum equals 90°

Supplementary angles: Two angles are Supplementary angles if their sum equals 180°

a) Name a pair of complementary angles

So, <DXC and < CXB are complementary angles

b) Name two Supplementary angles pair

<AXB and <DXB (their sum equals 180°)

<AXC and DXC ((their sum equals 180°))

4 0

3 years ago

What is the solution to the equation 3(2x+5)=3x+4x?

lina2011 [118]

Answer:

x=15

Step-by-step explanation:

6x+15=7x

15=x

7 0

3 years ago

3. Wanda bought a share in Tasty Ice Cream for $25 on March 1. On June 13, Tasty Ice Cream's shares were trading

Gnesinka [82]

Answer:

D) Wanda will receive $23.50 for her share, meaning she lost $1.50 on the investment.

Step-by-step explanation:

Identify what you know:

1) Wanda bought a single share in Tasty Ice Cream for $25.00 on March 1st.

2) Tasty Ice Cream's stock price dropped to $23.50 (-1.50).

When investing in the stock market, you are always attempting to make a profit. So, you buy a stock when it's "low," and buy it when the prices go up. In reality, Wanda shouldn't sell her share yet, because she will lose $1.50. However, there is nothing stopping her, if she wanted to. Since the share is worth $23.50, Wanda will make $23.50 if she sells her share on June 13th.

8 0

3 years ago

How to resolve this problem?​

How to resolve this problem?